El Paso, Texas — An estimated 60,000 migrants are waiting near the U.S.-Mexico border hours before the Biden administration is set to end the Title 42 pandemic-era rule that has allowed authorities to expel those entering the country unlawfully, a top U.S. official told CBS News on Thursday.

Border Patrol Chief Raul Ortiz said his agency is preparing for some of the tens of thousands of migrants currently on the Mexican side of the U.S.-Mexico border to try to cross into the U.S. once Title 42 expires on Thursday at 11:59 p.m. ET.

“Upwards of 60,000 migrants we project are staging in and around the immediate border area,” Ortiz said in an interview in El Paso. “So we’re focused on ensuring that we’re doing everything we can to allocate resources to address those flows.”

In the lead-up to the end of Title 42, triggered by the expiration of the national COVID-19 public health emergency, border officials have already seen a spike in migration, recording around 10,000 daily apprehensions on some days this week.

As of Thursday, nearly 25,000 migrants were in Border Patrol holding facilities and tents, Ortiz said, despite the agency only having capacity on paper to hold several thousand individuals.

Ortiz said Border Patrol is working to reduce overcrowding in its holding facilities by rapidly releasing some migrants without court dates.

“We are over capacity in several of the sectors,” Ortiz said. “And so we’re working closely with our NGO partners, our communities to make sure that we release those migrants after they’ve been vetted and cleared, and they pose no significant threat to the community.”

Ortiz attributed the current spike in border arrivals to smugglers “forcing some migrants to make some decisions that ultimately they probably shouldn’t make” by spreading misinformation about U.S. policy, including on social media.

Despite the current challenges, Ortiz said he does not anticipate a “huge surge” in migrant crossings in the immediate aftermath of Title 42 ending.

Ortiz noted the transition away from Title 42 won’t be abrupt, mentioning that on Wednesday only 19% of the migrants taken into custody were processed for expulsion under the public health order.

He also said the government is hoping to deter illegal crossings by deporting or returning migrants who don’t qualify for asylum and prosecuting repeat border crossers.

In fact, the Biden administration is set to make it harder for migrants to qualify for asylum after Title 42.

Under a rule being implemented on Friday, migrants who cross the southern border without permission will be ineligible for asylum if they did not ask for protection in another country, like Mexico, on their way to the U.S.

Those unable to prove they qualify for an exemption to the rule will face deportation to their home country or Mexico, as well as a 5-year banishment from the U.S.

The Biden administration is pairing the stricter asylum rules with increased opportunities for migrants to enter the country legally, including through an app for asylum seekers in Mexico and a program for Cubans, Nicaraguans, Haitians and Venezuelans with American sponsors.

Biden administration officials have said the policies will eventually reduce the historically high levels of border arrivals.

Nevertheless, Secretary of Homeland Security Alejandro Mayorkas said the policy changes will usher in a “difficult” period for his department. President Biden also said the situation would be “chaotic,” at least for “a while.”

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