Cargo wagons are seen at the Atbara railway station in Nile State, Sudan November 8, 2019. Picture taken November 8, 2019. REUTERS/Mohamed Nureldin Abdallah

Vandalised cargo wagons are seen at the Atbara railway station in Nile State, Sudan November 8, 2019. Picture taken November 8, 2019. REUTERS/Mohamed Nureldin Abdallah

Sudanese men walk past cargo wagons at the Atbara railway station in Nile State, Sudan November 8, 2019. Picture taken November 8, 2019. REUTERS/Mohamed Nureldin Abdallah

Products are seen into an old train wagon converted into a restaurant and shop of Cafe Irupana in the old train station in La Paz, Bolivia, March 15, 2019. REUTERS/David Mercado

Eli's restaurant is installed into an old train wagon at the old train station in La Paz, Bolivia, March 15, 2019. REUTERS/David Mercado

A woman reads a book at an old train wagon converted into a restaurant and shop of Cafe Irupana in the old train station in La Paz, Bolivia, March 15, 2019. REUTERS/David Mercado

A boy walks next to an old train wagon converted into a restaurant and shop of Cafe Irupana is seen in the old train station in La Paz, Bolivia, March 15, 2019. REUTERS/David Mercado

Customers are seen into an old train wagon converted into a restaurant and shop of Cafe Irupana in the old train station in La Paz, Bolivia, March 15, 2019. REUTERS/David Mercado

An old train wagon converted into a restaurant and shop of Cafe Irupana is seen in the old train station in La Paz, Bolivia, March 15, 2019. REUTERS/David Mercado

Old train wagons converted into a restaurant and shop of Cafe Irupana is seen in the old train station in La Paz, Bolivia, March 15, 2019. REUTERS/David Mercado

Migrants from Honduras, part of a caravan of thousands traveling from Central America en route to the U.S., wash themselves with water from a water wagon in a makeshift camp at a gas station where the migrants wait for buses which take them to the Mexican border city of Tijuana, in Navojoa, Mexico November 16, 2018. REUTERS/Kim Kyung-Hoon

Empty seats are seen in a train wagon at Montparnasse train station during a nationwide strike by French SNCF railway workers in Paris, France, April 29, 2018. REUTERS/Christian Hartmann

Freight wagons are seen at the train station in Tunis, Tunisia November 16, 2017. REUTERS/Zoubeir Souissi

Freight wagons are seen at the train station in Tunis, Tunisia November 16, 2017. REUTERS/Zoubeir Souissi

Denise Germann, public affairs officer for Grand Teton National Park, speaks to colleagues through the window of a station wagon at the park's headquarters in Jackson Hole, Wyoming, U.S. July 12, 2017. Picture taken July 12, 2017. REUTERS/Ann Saphir

A Soviet-era Moskvich-427 station wagon car is seen in a parking lot in Minsk, Belarus May 30, 2017. REUTERS/Vasily Fedosenko

An employee checks a railway track next to a tanker wagon train at Okhla railway station in New Delhi, India, April 20, 2017. Picture taken April 20, 2017. REUTERS/Adnan Abidi

Dozens of migrants, mostly young Moroccans, Tunisians and Algerians, who arrived in Greece in the last year, found shelter in old rusting carriages around a station in the outskirts of Greece's northern city of Thessaloniki. From there, they monitor freight trains heading to central Europe. Whenever trains stop in the station, the migrants try to sneak into their compartments or jump in between wagons. If they're lucky, they make it across unnoticed. Some said they plan to get off before the border and continue on foot. Often, they are arrested by Macedonian guards and sent back to Greece. No one can say how many have made it. REUTERS/Alexandros Avramidis SEARCH "TRAINS MIGRANTS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY. Matching text: EUROPE-MIGRANTS/GREECE

FILE PHOTO: Wagon trains of German rail operator Deutsche Bahn (DB) are seen at a freight railway station in the western city of Hagen October 6, 2014. REUTERS/Ina Fassbender/File Photo GLOBAL BUSINESS WEEK AHEAD PACKAGE Ð SEARCH BUSINESS WEEK AHEAD MARCH 13 FOR ALL IMAGES

General view of cars on wagons at goods station in Munich, Germany August 24, 2016. REUTERS/Michaela Rehle

General view of cars on wagons at goods station in Munich, Germany August 24, 2016. REUTERS/Michaela Rehle

A woman sits inside a train wagon at a train station at a makeshift camp for migrants and refugees at the Greek-Macedonian border near the village of Idomeni, Greece, May 10, 2016. REUTERS/Marko Djurica

A worker checks the water level on a tanker wagon at a railway station in Latur, India, April 16, 2016. REUTERS/Danish Siddiqui

A worker stands in front of a tanker wagon carrying water at a railway station in Latur, India, April 16, 2016. REUTERS/Danish Siddiqui

A station wagon sits submerged after flooding in the Lake Bistineau area in Webster Parish, Louisiana March 14, 2016. The death toll from storms in Southern U.S. states rose to five as storm-weary residents of Louisiana and Mississippi watched for more flooding on Monday from drenching rains that inundated homes, washed out roads and prompted thousands of rescues. REUTERS/Therese Apel

A locomotive with freight wagons is pictured at a railway station in Kiev, Ukraine, September 29, 2015. Ukraine's state-run railway company Ukrzaliznytsya said on Tuesday it had suspended cooperation with a cargo branch of Russian Railways as part of a wave of sanctions against Russia over its support for separatists in the east of the country. REUTERS/Valentyn Ogirenko

A locomotive with freight wagons is pictured at a railway station in Kiev, Ukraine, September 29, 2015. Ukraine's state-run railway company Ukrzaliznytsya said on Tuesday it had suspended cooperation with a cargo branch of Russian Railways as part of a wave of sanctions against Russia over its support for separatists in the east of the country. REUTERS/Valentyn Ogirenko

Prison guards attach barbwire on a freight train wagon, prepared to seal the border fence in Hungary at the train station in Roszke, Hungary September 14, 2015. REUTERS/Laszlo Balogh

Prison guards attach barbwire on a freight train wagon, prepared to seal the border fence in Hungary at the train station in Roszke, Hungary September 14, 2015. REUTERS/Laszlo Balogh

Prison guards attach barbwire on a freight train wagon, prepared to seal the border fence in Hungary at the train station in Roszke, Hungary September 14, 2015. REUTERS/Laszlo Balogh

A prison guard welds a metal pole on a freight train wagon, prepared to seal the border fence in Hungary at the train station in Roszke, Hungary September 14, 2015. REUTERS/Laszlo Balogh

A prison guard welds a metal pole on a freight train wagon, prepared to seal the border fence in Hungary at the train station in Roszke, Hungary September 14, 2015. REUTERS/Laszlo Balogh

Prison guards measure metal poles to be welded on a freight train wagon, prepared to seal the border fence in Hungary at the train station in Roszke, Hungary September 14, 2015. REUTERS/Laszlo Balogh

Prison guards measure metal poles to be welded on a freight train wagon, prepared to seal the border fence in Hungary at the train station in Roszke, Hungary September 14, 2015. REUTERS/Laszlo Balogh

Travellers sit on the stairs of a wagon as a train heading for Austria, with migrants on board, is stopped for checks at a border station in Hegyeshalom, Hungary, August 31, 2015. Austrian authorities toughened controls along the country's eastern borders on Monday, stopping hundreds of refugees and arresting five traffickers in a clampdown that followed last week's gruesome discovery of 71 dead migrants in a truck. REUTERS/Heinz-Peter Bader

Civilians wait for the bus at a station in the old city of Homs June 3, 2015. Steady advances by insurgents on key fronts in Syria mean President Bashar al-Assad is under more military pressure than at any point in the four-year-old war. After his loss of Palmyra, a symbolic and militarily strategic city, and nearly all of Idlib province, he appears to be circling his wagons more closely to a western region that includes Damascus, Homs, Hama and the coast. REUTERS/Omar Sanadiki

Syrian immigrants rest at the courtyard of a Greek police station in Idomeni village near the Greek-Macedonian border after they were rescued by locals May 13, 2015. About 90 Syrians including women and children were locked into a train wagon by smugglers, according to witnesses and a local train contractor at the train station. Hundreds of mostly Afghan, Syrian, and African immigrants cross daily from Greece into Macedonia on their way to northern European countries; most of them are turned back by Macedonian border guards. REUTERS/Yannis Behrakis

Syrian immigrants rest at the courtyard of a Greek police station in Idomeni village near the Greek-Macedonian border after they were rescued by locals May 13, 2015. About 90 Syrians including women and children were locked into a train wagon by smugglers, according to witnesses and a local train contractor at the train station. Hundreds of mostly Afghan, Syrian, and African immigrants cross daily from Greece into Macedonia on their way to northern European countries; most of them are turned back by Macedonian border guards. REUTERS/Yannis Behrakis

Cargo wagons are parked at a train station in Munich, Germany, May 6, 2015. A record-setting seven-day strike by the GDL union of train drivers began on Monday, the eighth in a series of walkouts over pay and working conditions, threatening commuter chaos and disruption to vital supply chains. REUTERS/Michaela Rehle

Cargo wagons are parked at a train station in Munich, Germany, May 6, 2015. A record-setting seven-day strike by the GDL union of train drivers began on Monday, the eighth in a series of walkouts over pay and working conditions, threatening commuter chaos and disruption to vital supply chains. REUTERS/Michaela Rehle

Cargo wagons are parked at a train station in Munich, Germany, May 6, 2015. A record-setting seven-day strike by the GDL union of train drivers began on Monday, the eighth in a series of walkouts over pay and working conditions, threatening commuter chaos and disruption to vital supply chains. REUTERS/Michaela Rehle

Cargo wagons are parked at a train station in Munich, Germany, May 6, 2015. A record-setting seven-day strike by the GDL union of train drivers began on Monday, the eighth in a series of walkouts over pay and working conditions, threatening commuter chaos and disruption to vital supply chains. REUTERS/Michaela Rehle

Abandoned train tank wagons are pictured in Kfar Halab train station in the western countryside of Aleppo May 4, 2015. The station is out of service since nearly three years due to the conflict in the country and it is now the housing to about 40 displaced families, activists said. Picture taken May 4, 2015. REUTERS/Hamid Khatib

Abandoned train tank wagons are pictured in Kfar Halab train station in the western countryside of Aleppo May 4, 2015. The station is out of service since nearly three years due to the conflict in the country and it is now the housing to about 40 displaced families, activists said. Picture taken May 4, 2015. REUTERS/Hamid Khatib

Abandoned train tank wagons are pictured in Kfar Halab train station in the western countryside of Aleppo May 4, 2015. The station is out of service since nearly three years due to the conflict in the country and it is now the housing to about 40 displaced families, activists said. Picture taken May 4, 2015. REUTERS/Hamid Khatib

Members of the Ukrainian armed forces wait near a multiple rocket launchers system before loading it onto a wagon of a cargo train at a train station in Artemivsk, eastern Ukraine, March 6, 2015. Ukrainian armed forces are withdrawing rocket launchers in accordance with a peace plan signed last month in Minsk, where both sides of the 10-month long conflict agreed to a ceasefire and the withdrawal of heavy weapons. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS MILITARY CONFLICT)

Members of the Ukrainian armed forces prepare food near a multiple rocket launchers system before loading it onto a wagon of a cargo train at a train station in Artemivsk, eastern Ukraine, March 6, 2015. Ukrainian armed forces are withdrawing rocket launchers in accordance with a peace plan signed last month in Minsk, where both sides of the 10-month long conflict agreed to a ceasefire and the withdrawal of heavy weapons. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS MILITARY CONFLICT)

A member of the Ukrainian armed forces prepare food near a multiple rocket launchers system before loading it onto a wagon of a cargo train at a train station in Artemivsk, eastern Ukraine, March 6, 2015. Ukrainian armed forces are withdrawing rocket launchers in accordance with a peace plan signed last month in Minsk, where both sides of the 10-month long conflict agreed to a ceasefire and the withdrawal of heavy weapons. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS MILITARY CONFLICT)

Members of the Ukrainian armed forces prepare food near a multiple rocket launchers system before loading it onto a wagon of a cargo train at a train station in Artemivsk, eastern Ukraine, March 6, 2015. Ukrainian armed forces are withdrawing rocket launchers in accordance with a peace plan signed last month in Minsk, where both sides of the 10-month long conflict agreed to a ceasefire and the withdrawal of heavy weapons. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS MILITARY CONFLICT)

Members of the Ukrainian armed forces lights a fire to prepare food near multiple rocket launchers system before loading it onto a wagon of a cargo train at a train station in Artemivsk, eastern Ukraine, March 6, 2015. Ukrainian armed forces are withdrawing rocket launchers in accordance with a peace plan signed last month in Minsk, where both sides of the 10-month long conflict agreed to a ceasefire and the withdrawal of heavy weapons. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS MILITARY CONFLICT)

A member of the Ukrainian armed forces rides on military vehicle near self-propelled howitzers before they were loaded onto a wagon of a cargo train at a train station in Artemivsk, eastern Ukraine, March 6, 2015. Ukrainian armed forces are withdrawing rocket launchers in accordance with a peace plan signed last month in Minsk, where both sides of the 10-month long conflict agreed to a ceasefire and the withdrawal of heavy weapons. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS MILITARY CONFLICT)

A member of the Ukrainian armed forces cleans the window of a multiple rocket launcher system before loading it onto a wagon of a cargo train at a train station in Artemivsk, eastern Ukraine, March 6, 2015. Ukrainian armed forces are withdrawing rocket launchers in accordance with a peace plan signed last month in Minsk, where both sides of the 10-month long conflict agreed to a ceasefire and the withdrawal of heavy weapons. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS MILITARY CONFLICT)

Self-propelled howitzers belonging to the Ukrainian armed forces are pictured before they were loaded onto a wagon of a cargo train at a train station in Artemivsk, eastern Ukraine, March 6, 2015. Ukrainian armed forces are withdrawing rocket launchers in accordance with a peace plan signed last month in Minsk, where both sides of the 10-month long conflict agreed to a ceasefire and the withdrawal of heavy weapons. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS MILITARY CONFLICT)

A member of Ukrainian armed forces walks near a self-propelled howitzer before loading it onto a wagon of a cargo train at a train station in Artemivsk, eastern Ukraine, March 6, 2015. Ukrainian armed forces are withdrawing rocket launchers in accordance with a peace plan signed last month in Minsk, where both sides of the 10-month long conflict agreed to a ceasefire and the withdrawal of heavy weapons. REUTERS/Gleb Garanich (UKRAINE)

A member of Ukrainian armed forces walks near a self-propelled howitzer before it was loaded onto a wagon of a cargo train at a train station in Artemivsk, eastern Ukraine, March 6, 2015. Ukrainian armed forces are withdrawing rocket launchers in accordance with a peace plan signed last month in Minsk, where both sides of the 10-month long conflict agreed to a ceasefire and the withdrawal of heavy weapons. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS MILITARY CONFLICT)

A member of Ukrainian armed forces walks near multiple rocket launchers system before loading them onto a wagon of a cargo train at a train station in Artemivsk, eastern Ukraine, March 6, 2015. Ukrainian armed forces are withdrawing rocket launchers in accordance with a peace plan signed last month in Minsk, where both sides of the 10-month long conflict agreed to a ceasefire and the withdrawal of heavy weapons. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS MILITARY CONFLICT)

Members of Ukrainian armed forces wait near multiple rocket launchers system before loading them onto a wagon of a cargo train at a train station in Artemivsk, eastern Ukraine, March 6, 2015. Ukrainian armed forces are withdrawing rocket launchers in accordance with a peace plan signed last month in Minsk, where both sides of the 10-month long conflict agreed to a ceasefire and the withdrawal of heavy weapons. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS MILITARY CONFLICT)

Members of the Ukrainian armed forces wait near multiple rocket launchers system before loading them onto a wagon of a cargo train at a train station in Artemivsk, eastern Ukraine, March 6, 2015. Ukrainian armed forces are withdrawing rocket launchers in accordance with a peace plan signed last month in Minsk, where both sides of the 10-month long conflict agreed to a ceasefire and the withdrawal of heavy weapons. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS MILITARY CONFLICT)

Members of the Ukrainian armed forces wait near multiple rocket launchers system before they were loaded onto a wagon of a cargo train at a train station in Artemivsk, eastern Ukraine, March 6, 2015. Ukrainian armed forces are withdrawing rocket launchers in accordance with a peace plan signed last month in Minsk, where both sides of the 10-month long conflict agreed to a ceasefire and the withdrawal of heavy weapons. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS MILITARY CONFLICT)

Members of the Ukrainian armed forces wait near their multiple rocket launchers system before they were loaded onto a wagon of a cargo train at a train station in Artemivsk, eastern Ukraine, March 6, 2015. Ukrainian armed forces are withdrawing rocket launchers in accordance with a peace plan signed last month in Minsk, where both sides of the 10-month long conflict agreed to a ceasefire and the withdrawal of heavy weapons. REUTERS/Gleb Garanich (UKRAINE - Tags: POLITICS MILITARY CONFLICT)