PEARLAND, Texas -- A man in the United States illegally has been charged with aggravated sexual assault of a child, KPRC Local 2 reported Thursday.

Pearland police said Isaias Larios, 20, spotted an 11-year-old girl behind a church on Third Street on Sunday.

"There was a young girl washing her hands because she had finished using the restroom," Capt. Jon Matherne said. "He grabbed her, took her out back, made her climb a fence and sexually assaulted her."

Larios has been arrested and is being held on $105,000 bond.

Court records show that Larios has a lengthy criminal history in the Dallas area. Larios was on probation for a felony conviction but was not supervised because his case was not properly transferred to Brazoria County.

An immigration hold has also been placed on Larios because he is in the country illegally, police said. Larios is from El Salvador.

Detectives said that if Larios posts bond, he will be turned over to Immigration and Customs Enforcement.

If convicted, Larios would have to serve his sentence and would then be deported, officials said.