Pictures of the Year: Caravans: the new face of migration
A caravan of thousands of migrants from Central America, en route to the United States, makes its way to San Pedro Tapanatepec from Arriaga, Mexico, October 27, 2018. Reuters photographer Ueslei Marcelino: "The caravan had gone through a tense night in Arriaga - the famous train "La Bestia", which many migrants use to travel north, wasn't running which frustrated their plan to shorten their journey. They continued by road and arrived at a police blockade. The migrants moved closer together to try to protect themselves as they feared the police might take action to stop the advance of the caravan. Tense moments ensued before the police allowed the migrants to pass. When I saw a van parked at the side of the road I climbed on the roof and was astonished at how many people I could see from up above." REUTERS/Ueslei Marcelino SEARCH "IMMIGRATION POY" FOR THIS STORY. SEARCH "REUTERS POY" FOR ALL BEST OF 2018 PACKAGES. TPX IMAGES OF THE DAY.