A staff member shows how food is delivered in a compartment outside a room of the short-stay facility Connect@Changi, which will welcome business "bubble" travellers from March as part of the city-state's effort to resume international meetings and conferences amid the coronavirus disease (COVID-19) outbreak, in Singapore February 22, 2021. REUTERS/Edgar Su

U.S. Army personnel descend into the House SCIF (sensitive compartmented information facility) at the U.S. Capitol in Washington, U.S., January 28, 2021. REUTERS/Tom Brenner

Hedva Opatovsky, the longest-serving flight attendant for El Al, the Israeli flag carrier, closes an overhead compartment onboard the return trip to Abu Dhabi which was her last flight before retiring, upon the plane's landing at Ben Gurion International airport in Lod, near Tel Aviv, Israel September 1, 2020. Picture taken September 1, 2020. REUTERS/Nir Elias/Pool

A flight attendant of TUI Fly wears a face mask as she closes a storage compartment on the first tourist flight from Duesseldorf to Mallorca, two weeks before Spain starts reopening borders closed since mid-March to curb the coronavirus disease (COVID-19) pandemic, in Duesseldorf, Germany, June 15, 2020. REUTERS/Erol Dogrudogan

A mother and her son maintaining a safe distance sit in a compartment of a train as they return to their hometown, after Pakistan started easing the lockdown restrictions and allowed to resume passenger trains, following the coronavirus disease (COVID-19) outbreak, in Karachi, Pakistan May 20, 2020. REUTERS/Akhtar Soomro

An empty train compartment of an ICE high-speed train is seen as the spread of the coronavirus disease (COVID-19) continues, near Berlin, Germany, March 30, 2020. REUTERS/Hannibal Hanschke

An empty train compartment of an ICE high-speed train is seen as the spread of the coronavirus disease (COVID-19) continues, near Berlin, Germany, March 23, 2020. REUTERS/Hannibal Hanschke

A railway employee talks on the phone inside an empty train compartment after railway services were shutdown by the authorities to limit the spread of the coronavirus disease (COVID-19) in Mumbai, India, March 23, 2020. REUTERS/Francis Mascarenhas TPX IMAGES OF THE DAY

U.S. Rep. Jamie Raskin (D-MD) briefs the media at House Intelligence Committee's Sensitive Compartmented Information Facility (SCIF) during the closed-door deposition of Mark Sandy, deputy associate director of the Office of Management and Budget for National Security Programs, as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 16, 2019. REUTERS/Yara Nardi

U.S. Rep. Jamie Raskin (D-MD) briefs the media at House Intelligence Committee's Sensitive Compartmented Information Facility (SCIF) during the closed-door deposition of Mark Sandy, deputy associate director of the Office of Management and Budget for National Security Programs, as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 16, 2019. REUTERS/Yara Nardi

The U.S. Capitol dome is seen from the entrance to the House Intelligence Committee's Sensitive Compartmented Information Facility (SCIF) during the closed-door deposition of Mark Sandy, associate director of the Office of Management and Budget for National Security Programs, as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 16, 2019. REUTERS/Yara Nardi

The U.S. Capitol dome is seen from the entrance to the House Intelligence Committee's Sensitive Compartmented Information Facility (SCIF) during the closed-door deposition of David Holmes, the counselor for political affairs at the U.S. embassy in Ukraine, as part of the impeachment inquiry into U.S. President Donald Trump on Capitol Hill in Washington, U.S., November 15, 2019. REUTERS/James Lawler Duggan

David Holmes, the political counselor at the U.S. Embassy in Kyiv, arrives to a closed-door deposition with lawmakers in the Sensitive Compartmented Information Facility (SCIF) in the US Capitol in Washington, U.S., November 15, 2019. REUTERS/Sarah Silbiger

David Holmes, the political counselor at the U.S. Embassy in Kyiv, arrives to a closed-door deposition with lawmakers in the Sensitive Compartmented Information Facility (SCIF) in the US Capitol in Washington, U.S., November 15, 2019. REUTERS/Sarah Silbiger

Representative Eric Swalwell (D-CA) exits the U.S. House of Representatives Sensitive Compartmented Information Facility (SCIF) during a break in the impeachment inquiry into U.S. President Trump led by the House Intelligence, House Foreign Affairs and House Oversight and Reform Committees on Capitol Hill in Washington, U.S., November 7, 2019. REUTERS/Tom Brenner

U.S. Rep. Jim Jordan (R-OH) speaks to members of the news media as he walks up the stairs after leaving the Sensitive Compartmented Information Facility (SCIF) during the ongoing impeachment inquiry into U.S. President Trump on Capitol Hill in Washington, U.S., November 4, 2019. REUTERS/Leah Millis

U.S. Rep. Jim Jordan (R-OH) speaks to members of the news media outside of the Sensitive Compartmented Information Facility (SCIF) during the ongoing impeachment inquiry into U.S. President Trump on Capitol Hill in Washington, U.S., November 4, 2019. REUTERS/Leah Millis

A reporter does a live shot near the Sensitive Compartmented Information Facility (SCIF) during the ongoing impeachment inquiry into U.S. President Trump on Capitol Hill in Washington, U.S., November 4, 2019. REUTERS/Leah Millis

U.S. Rep. Jamie Raskin (D-MD) walks down stairs towards the Sensitive Compartmented Information Facility (SCIF) to monitor the ongoing impeachment inquiry into U.S. President Trump on Capitol Hill in Washington, U.S., November 4, 2019. REUTERS/Leah Millis

U.S. Rep. Jim Jordan (R-OH) walks down stairs towards the Sensitive Compartmented Information Facility (SCIF) to monitor the ongoing impeachment inquiry into U.S. President Trump on Capitol Hill in Washington, U.S., November 4, 2019. REUTERS/Leah Millis

U.S. Rep. Jim Jordan (R-OH) walks down stairs towards the Sensitive Compartmented Information Facility (SCIF) to monitor the ongoing impeachment inquiry into U.S. President Trump on Capitol Hill in Washington, U.S., November 4, 2019. REUTERS/Leah Millis

Siddharth Dhage, 10, and his neighbour Gaurav Ganesh, 13, sit in the luggage compartment of a train on their journey back to Mukundwadi railway station, in Aurangabad, India, July 18, 2019. Dhage is among a small group of children who take a 14 km (9 miles) return train journey from their village in India to fetch water. Gaurav accompanies Siddharth on his train journeys whenever he can and helps unload the water containers from the train. "I don't like to spend time bringing water, but I don't have a choice," Dhage said. REUTERS/Francis Mascarenhas SEARCH "MASCARENHAS DROUGHT" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

An employee looks on inside machinery compartment at floating nuclear power plant Akademik Lomonosov during preparations for a 4,000-mile journey along the Northern Sea Route to Chukotka in Murmansk, Russia August 22, 2019. REUTERS/Maxim Shemetov

Food prepared for Iftar at the GuruNanak Darbar Sikh temple, during the Muslim holy month of Ramadan in Dubai, United Arab Emirates May 23, 2019. Picture taken May 23, 2019. REUTERS/Christopher Pike

A man holding a child reacts behind a voting compartment as he prepares to cast his vote at a polling station during the sixth phase of the general election, in New Delhi, India, May 12, 2019. REUTERS/Anushree Fadnavis

A woman is pictured through a voting compartment as she casts her vote at a polling station during the sixth phase of the general election, in New Delhi, India, May 12, 2019. REUTERS/Anushree Fadnavis

A woman is pictured through a voting compartment as she casts her vote as she is pictured through a voting compartment at a polling station during the first phase of general election in Majuli, a large river island in the Brahmaputra river, in the northeastern Indian state of Assam, India April 11, 2019. REUTERS/Adnan Abidi

A child has a snack, as part of a health program of the NGO "Comparte por una vida" (Share for a life), at La Frontera school in Cucuta, Colombia February 5, 2019. Picture taken February 5, 2019. REUTERS/Marco Bello

A child cries as he has a blood test sample taken during a health program of the NGO "Comparte por una vida" (Share for a life) at La Frontera school in Cucuta, Colombia February 5, 2019. Picture taken February 5, 2019. REUTERS/Marco Bello

A child shows smiley stickers he received after taking a blood test sample during a health program of the NGO "Comparte por una vida" (Share for a life) at La Frontera school in Cucuta, Colombia February 5, 2019. Picture taken February 5, 2019. REUTERS/Marco Bello

A child has a snack, as part of a health program of the NGO "Comparte por una vida" (Share for a life), at La Frontera school in Cucuta, Colombia February 5, 2019. Picture taken February 5, 2019. REUTERS/Marco Bello

A child gets his height measured during a health program of the NGO "Comparte por una vida" (Share for a life) at La Frontera school in Cucuta, Colombia February 5, 2019. Picture taken February 5, 2019. REUTERS/Marco Bello

Ana Isabel Otero, Director of the NGO "Comparte por una vida" (Share for a life), talks with children as they have a snack, part of the NGO health program, at La Frontera school in Cucuta, Colombia February 5, 2019. Picture taken February 5, 2019. REUTERS/Marco Bello

A child gets her weight measured during a health program of the NGO "Comparte por una vida" (Share for a life) at La Frontera school in Cucuta, Colombia February 5, 2019. Picture taken February 5, 2019. REUTERS/Marco Bello

A child has a snack, as part of a health program of the NGO "Comparte por una vida" (Share for a life), at La Frontera school in Cucuta, Colombia February 5, 2019. Picture taken February 5, 2019. REUTERS/Marco Bello

A child gets her height measured during a health program of the NGO "Comparte por una vida" (Share for a life) at La Frontera school in Cucuta, Colombia February 5, 2019. Picture taken February 5, 2019. REUTERS/Marco Bello

Geng Shuai, dubbed "Useless Edison" by his fans, demonstrates a "bath sword" with a bath scrub and a shampoo compartment during a live broadcast at his workshop in Yangcun village of Baoding, Hebei province, China January 22, 2019. Picture taken January 22, 2019. REUTERS/Jason Lee

Carrie Lightfoot, the founder of The Well Armed Woman, demonstrates a gun draw from a purse's holster compartment at the Gun Tote'n Mamas booth during the SHOT (Shooting, Hunting, Outdoor Trade) Show in Las Vegas, Nevada, U.S., January 22, 2019. Picture taken January 22, 2019. REUTERS/Steve Marcus

Brass types are stocked inside Calero's artisan bookbinding and book restoration workshop in Madrid, Spain, September 12, 2018. REUTERS/Susana Vera

A fireman is seen entering the cargo compartment of a Turkish Airlines flight parked on the tarmac of Budapest Airport, Hungary, August 15, 2018 after one terminal of the airport and its surroundings were briefly shut down as the Disaster Management Authority ordered an investigation due to an overheated container carrying an isotope on an incoming flight. Neither the airport nor the disaster control authority confirmed that the flight affected was operated by Turkish Airlines. REUTERS/Bernadett Szabo

A fireman is seen entering the cargo compartment of a Turkish Airlines flight parked on the tarmac of Budapest Airport, Hungary, August 15, 2018 after one terminal of the airport and its surroundings were briefly shut down as the Disaster Management Authority ordered an investigation due to an overheated container carrying an isotope on an incoming flight. Neither the airport nor the disaster control authority confirmed that the flight affected was operated by Turkish Airlines. REUTERS/Bernadett Szabo

Firemen are seen entering the cargo compartment of a Turkish Airlines flight parked on the tarmac of Budapest Airport, Hungary, August 15, 2018 after one terminal of the airport and its surroundings were briefly shut down as the Disaster Management Authority ordered an investigation due to an overheated container carrying an isotope on an incoming flight. Neither the airport nor the disaster control authority confirmed that the flight affected was operated by Turkish Airlines. REUTERS/Bernadett Szabo

Firemen are seen entering the cargo compartment of a Turkish Airlines flight parked on the tarmac of Budapest Airport, Hungary, August 15, 2018 after one terminal of the airport and its surroundings were briefly shut down as the Disaster Management Authority ordered an investigation due to an overheated container carrying an isotope on an incoming flight. Neither the airport nor the disaster control authority confirmed that the flight affected was operated by Turkish Airlines. REUTERS/Bernadett Szabo

University student Sinan Usta, 24, decorates his compartment with candles and lights as the Eastern Express travels through Kayseri province en route from Ankara to Kars, Turkey, April 9, 2018. Sinan decorated the wagon with candles and rainbow coloured flashing lights for his girlfriend. "We had this journey planned months ago. But my girlfriend's family didn't allow her," he said. "I don't like leaving things unfinished, so I took the train anyway." REUTERS/Umit Bektas SEARCH "BEKTAS EXPRESS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Shoes are seen in the overhead compartment of a bus bound for Puebla, carrying Central American migrants, who are part of a caravan moving through Mexico toward the U.S. border, on a highway in Veracruz, Mexico April 6, 2018. REUTERS/Edgard Garrido

Engine compartment of a zero-emission truck at the Port of Long Beach is seen during zero-emission port project announcement, in Long Beach, California, U.S., April 4, 2018. REUTERS/Bob Riha Jr.

Port officials examine the engine compartment of a zero-emission truck at the Port of Long Beach during zero-emission port project announcement in Long Beach, California, U.S., April 4, 2018. REUTERS/Bob Riha Jr.

Journalist Arif Balouch, 48, poses for a photograph with his 1980 model Vespa scooter in Karachi, Pakistan, March 2, 2018. "For me, a Vespa scooter is like a family tradition. My father used to ride this and I myself find this very good as it has two separate comfortable seats which is uncommon, it has a compartment to keep things which is also uncommon and for safety it guards your knees during accidents. I would say it's the BMW of scooters," Balouch said. REUTERS/Akhtar Soomro SEARCH "VESPA PAKISTAN" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

An aide enters the House Intelligence Committee's SCIF (Sensitive Compartmented Information Facility) in the U.S. Capitol in Washington, U.S., February 2, 2018. REUTERS/Aaron P. Bernstein

A commuter jumps between train compartments as they gather to attend Akheri Munajat, the final supplication during Biswa Ijtema in Tongi, on the outskirts of Dhaka, Bangladesh, January 14, 2018. REUTERS/Mohammad Ponir Hossain

A member of the U.S. Navy, aboard the Boeing P-8A Poseidon plane, places a sonobuoy in the launching compartment to drop it at sea as they fly over the South Atlantic Ocean during the search for the ARA San Juan submarine missing at sea, Argentina November 22, 2017. A sonobuoy is an expendable sonar system that is ejected from aircraft or ships conducting anti-submarine warfare or underwater acoustic research. Picture taken November 22, 2017. REUTERS/Magali Cervantes

Euro coins are displayed in a shop in Brussels, Belgium November 14, 2017. REUTERS/Eric Vidal

Sumo wrestler Kyokutaisei uses his smart phone during a break in his private compartment at Ganjoji Yakushido temple in Nagoya, Japan, July 5, 2017. The temple is used by sumo wrestlers belonging to the Tomozuna stable as a temporary base for the Nagoya Grand Sumo Tournament. REUTERS/Issei Kato SEARCH "KATO SUMO" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

A staff checks the luggage compartment of a Ethiad Regional airline aircraft at Cointrin airport in Geneva, Switzerland, May 22, 2017. REUTERS/Denis Balibouse

Deputy U.S. Attorney General Rod Rosenstein (2nd L) enters the U.S. Senate's Sensitive Compartmented Information Facility (SCIF) with his security detail to brief the full Senate on details of President Donald Trump's recent firing of FBI Director James Comey at the U.S. Capitol in Washington, U.S. May 18, 2017. REUTERS/Jonathan Ernst

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

A Peshmerga soldier checks the bag compartment of people who are fleeing the fighting between Islamic State and the Iraqi army in Mosul, inside a bus at their checkpoint in Iraq November 14, 2016. REUTERS/Zohra Bensemra

A Peshmerga soldier checks the bag compartment of people who are fleeing the fighting between Islamic State and the Iraqi army in Mosul, inside a bus at their checkpoint in Iraq November 14, 2016. REUTERS/Zohra Bensemra

A general view of the first class compartment inside a new ICE 4 high speed train of German railway operator Deutsche Bahn after the arrival at Hauptbahnhof main railway station in Berlin, Germany, September 14, 2016. REUTERS/Fabrizio Bensch