U.S. border authorities encountered more immigrants in December 2023 than any month on record, blowing past alarming records set previously in the Biden administration.

More than 371,000 non-U.S. citizens were stopped when they attempted to enter the United States last month, including those who walked across without permission, lacked proper documents to pass through ports of entry, or were paroled in from abroad, according to U.S. Customs and Border Protection data released Friday evening. The previous record of 341,392 was set in August 2023.