US authorities arrested the wife of jailed Mexican drug lord Joaquin “El Chapo” Guzman Loera on Monday as she arrived at Dulles International Airport outside of Washington, the Justice Department said.

Emma Coronel Aispuro, 31, faces charges of trafficking cocaine, methamphetamine, heroin and marijuana for importation into the United States, it said.

Guzman was the leader of the Sinaloa Cartel, one of Mexico’s most notorious drag trafficking groups, before he was extradited to the United States in 2017. He was sentenced to life in prison in July 2019.

Coronel, according to the Justice Department, took part in cartel activities and also allegedly assisted in two plots to help Guzman escape from Mexican prison, including the successful first one in 2015. 

It was not previously known that US authorities intended to arrest her.