The group was observed coming down on the U.S. side of the wall by a Border Patrol camera operator.
He told Fox News that Tijuana can not continue providing support for the migrants, saying the city's resources have been depleted. "That was in the Yuma Sector in Arizona, also interdicted and apprehended by Border Patrol agents".
Asylum seekers look past the U.S. -Mexico border fence, in Tijuana, Mexico, on November 30.
At least two dozen caravan migrants - including children - climbed the U.S. -Mexico border fence in Tijuana and entered the United States illegally Monday night, Reuters reported.
U.S. Border Patrol agents watch unauthorized migrants cross into San Ysidro, Calif., on Sunday. "Eighty-five percent of those crossing illegally between ports of entry and all lured by the fact that our legal framework has huge gaps that create the opportunity to stay in the US while awaiting a court hearing even if they don't a lawful permission or protection claim", he continued.
As the situation in Tijuana, Mexico continues to deteriorate as thousands of illegal aliens wait to gain access to the United States, the crisis continues along many different sectors of the border.
The inhospitable conditions have increased the apparent frustration of thousands of the caravaners, some of whom arrived at this Mexican border city two weeks ago.
Immigration advocates have long warned that migrants making the journey from Central America to the USA could be setting foot on a unsafe path. Mexican authorities arrested and deported those they considered responsible for compromising the city's commitment to public order.
McAleenan has been overseeing the USA southern border where more than 7,000 migrants have gathered near Tijuana, Mexico.
Some migrants, however, were reluctant to head to their new facility.
McAleenan noted that the migrants' confusion at the border has left many desperately looking for a way to cross the border illegally.
The near-4,000-person estimate for those who have died or gone missing counts 1,573 more people than previous estimates calculated by the United Nations.
The shelter's inhabitants are required to keep the new shelter tidy, refraining from bringing in food and cleaning the bathrooms, migrants told UPI.