The number of migrants apprehended at the U.S.-Mexico border reached the highest levels under President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE in October, according to data released by U.S. Customs and Border Protection (CBP) late Friday.

Border Patrol agents arrested or deemed inadmissible 60,745 people along the southern border last month, far exceeding any other month's totals under Trump's administration. CBP arrested 23,121 migrant family members, a 39 percent increase from September and the highest one-month total on record, according to The Washington Post.

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The Department of Homeland Security did not immediately respond to The Hill's request for comment on Friday's figures.

The figures came hours after Trump on Friday signed a proclamation blocking certain immigrants from claiming asylum.

The proclamation enacted a new rule the administration announced on Thursday aimed at limiting asylum claims to migrants who enter the country through legal ports of entry.

“We want people to come into our country, but they have to come into the country legally,” Trump told reporters at the White House before leaving for a trip to Paris.

Civil rights groups responded on Friday by suing the Trump administration over its order.

In a complaint filed in the U.S. District Court for the Northern District of California on Friday, the American Civil Liberties Union, Southern Poverty Law Center and Center for Constitutional Rights allege that the Trump administration is violating immigration law and the federal statute that governs the way administrative agencies can issue rules.

The civil rights groups, in their 18-page filing, claim the administration’s rule and proclamation “are in direct violation of Congress’s clear command that manner of entry cannot constitute a categorical asylum bar.”

The groups have asked the federal court to order the rule unlawful and issue a preliminary and permanent injunction to prevent the administration from implementing or enforcing it.