MEXICO CITY (AP) — Uniformed Mexican immigration agents put "affluenza" teen Ethan Couch aboard a commercial flight to Dallas Texas Thursday morning, ending his monthlong stay in Mexico.

Mexico's immigration institute said that Couch, who used an "affluenza" defense in a fatal drunken-driving accident, was taken to the Mexico City airport from an immigration holding center where he had been held.

Couch and his mother, Tonya, were detained in the resort of Puerto Vallarta in December. His mother was quickly sent back to the U.S. She was released after posting bail.

Video released by the immigration institute showed Couch wearing a bluish camouflage-print hoodie, being escorted out of the detention center before dawn, and being escorted onto the plane by four agents.

The agents did not appear to be armed.

The institute said that upon arrival in Dallas, Couch "will be met by U.S. authorities and face various charges."

Couch formally ratified his decision to drop an appeal against deportation on Monday.