Patrols at the US-Mexico border have caught a record number of illegal immigrants who crossed through multiple tunnels under the steel border fence near San Luis, Arizona. Almost half those apprehended are minors.

US Customs and Border Protection reports they have apprehended 376 illegal aliens, including 179 children – a record total for a single group – after the migrants entered the US earlier this week through seven tunnels dug by smugglers under the fence separating San Luis, Arizona from San Luis Rio Colorado, Mexico. While most passed through the tunnels, a few climbed over the barrier.

Group of 376 Central Americans illegally crossed from Mexico and inundated agents in #Yumasector on Monday morning. Almost all were families or unaccompanied juveniles. #NationalSecurity #SouthwestBorder pic.twitter.com/dWzS0LCgCV

— CBP Arizona (@CBPArizona) January 18, 2019

The new arrivals turned themselves in to authorities without incident, and the US Customs and Border Protection Agency tweeted multiple photos and videos of the migrants waiting to be processed. Thirty-one of them were unaccompanied minors.

“In my 30 years with the Border Patrol, I have not been part of arresting a group of 376 people,” said Border Sector Chief for Yuma Anthony Porvaznik, calling the huge group “unheard of.” He said the biggest challenge the Yuma patrol faces is the “humanitarian problem,” explaining that 87 percent of those apprehended are families and unaccompanied minors, and asked for better barriers along the border.

SNIP