At least two dozen Central American migrants, who claim to be disillusioned and frustrated with the asylum-seeking process, illegally crossed the U.S. -Mexico border on Monday by scaling a 10-foot metal fence.
Since mid-October, thousands of Central Americans, mostly from Honduras, have traveled north through Mexico in a caravan, some walking much of the long trek.
Melanie Hernandez, a migrant at the new shelter, said the desperate situation created by the rain has "improved the humanitarian response" offered by Mexican and USA non-governmental organizations, many of whom are offering clothes, medical care and some legal services.
Just moments later, border patrol agents were seen arriving to the area in an SUV.
But along the border inland as darkness descended, more and more migrants followed, many bringing children.
Some migrants helped each other over, using blankets as ropes.
The sight of them climbing the fence encouraged others, even as a helicopter patrolled overhead on the U.S. side.
Karen Mayeni, a 29-year-old Honduran mother with three children aged between 6 and 12, told Reuters that she was standing by and watching others penetrating the border and "waiting to see what happens". "We'll figure out what to do in a couple of days".
A previous attempt by a larger group of migrants to jump over the border wall was met with tear gas, sending women and children running back to the Mexican side.
The AP has said it compiled its data from information from worldwide groups, forensic records, death records, missing persons' reports and data examination from thousands of interviews with asylum seekers. The three migrants were then taken into custody.
The Pentagon said US Defense Secretary Jim Mattis had approved a request to extend the deployment of troops to the US border with Mexico till the end of January. "We've got over 7,000 migrants there".
Tijuana Mayor Juan Manuel Gastélum said it is costing the city $25,000 per day to feed and house the 7,000 migrants now in the city. "Stand on my head!" one migrant said, egging his companion on.
The child that suffered a facial injury was treated by border patrol agents, according to CBP. They turned around and waved to those still on the Mexican side.