An illegal immigrant convicted of killing his own child is in U.S. Immigration and Customs Enforcement custody after he encountered ICE officers in a Montana prison last month.

Carlos Ambriz, a 53-year-old Mexican national, made contact with ICE officers while serving a 40-year sentence in the Montana State Prison for a deliberate homicide conviction and was served a notice to appear before an immigration judge. 

He was arrested near his residence in Catoosa, Oklahoma, on March 25, ICE said.

Carlos Ambriz, 53, was arrested in Oklahoma on March 15, ICE said. (ICE)

Ambriz will remain in ICE custody until he is sent back to Mexico, and his upcoming deportation will not be his first.

He was ordered removed on July 3, 1999, by an immigration judge near Seattle, Washington.

Carlos Ambriz, 53, was previously deported in January 2006, after he was ordered removed in July 1999 by an immigration judge near Seattle, ICE said (ICE)

He was physically deported to Mexico near the Paseo Del Norte, Texas, Bridge on Jan. 26, 2006, according to ICE.