Authorities in Del Rio say more than 10,000 migrants have arrived at the impromptu camp, and they are expecting more in the coming days. The sudden influx has presented the Biden administration with a new border emergency at a time when illegal crossings have reached a 20-year high and Department of Homeland Security officials are straining to accommodate and resettle more than 60,000 Afghan evacuees…

How many more may arrive in the next few days is unclear. CBP is scrambling to send additional agents to Del Rio to help process the migrants, issuing them numbers as they queue up to be formally apprehended, the first step in applying for asylum or another form of U.S. protection. Most of the migrants are likely to be released into the United States with a notice to appear in court at a future date…

Del Rio Mayor Bruno “Ralphy” Lozano (D) said the size of the group has increased steadily to more than 10,500 people. “I thought the worst-case scenario was having a couple people, maybe 150 people roaming the streets,” said Lozano, who warned the Biden administration in a February video that his community needed more federal support to cope with a surge in crossings.

“Although I foreshadowed a worst-case scenario, this is probably a worse case of worst-case scenarios,” he said. “I need the administration to recognize that there is a border crisis happening in real time right now and it has dire consequences on security, health and safety.”