U.S. Immigration and Customs Enforcement arrested a Mexican sex offender last week in Edinburg.

The Harlingen Fugitive Operations Unit arrested Enrique Lavin-Garza, 35, a Mexican citizen — and a moderate risk sex offender registered with the Texas Department of Public Safety.

After Lavin served a state prison sentence for sexual assault of a child, the federal government deported him during June 2017.

“The defendant claims to have illegally re-entered the United States on or about September 4, 2017, by wading the Rio Grande River at or near Brownsville, Texas,” according to the federal criminal complaint against him.

Lavin is charged with illegal re-entry. U.S. Magistrate Judge Dorina Ramos ordered him held without bond.

Federal court records don’t list an attorney for Lavin, who remains in custody and couldn’t be reached for comment.

Prosecutors in the Southern District of Texas, which includes the Rio Grande Valley, handled 403 new immigration offenses in August — more than any other federal judicial district nationwide, according to the latest data published by the Transactional Records Access Clearinghouse at Syracuse University.

The McAllen Division, which covers Hidalgo County and Starr County, handles a significant portion of the workload.

All three district judges at the federal courthouse in McAllen handled more than 50 new immigration offenses in August, placing them among the top 10 nationwide.