New York — A Colombian drug trafficker testified on Tuesday that Mexican cartel leader Joaquin “El Chapo” Guzman once boasted about paying a $100 million bribe to the former president of Mexico.

Alex Cifuentes spoke about the alleged bribe to President Enrique Pena Nieto during his testimony on Tuesday in Guzman’s trial in New York.

The Colombian, who has been testifying for days about things he learned about Guzman’s gang while he was living at one of the kingpin’s hideaways in Mexico, didn’t provide many details about the bribery claim.

He said the money was delivered by a woman named Maria in Mexico City.

A spokesman for Nieto called the bribery claim “false and defamatory” when it first came up earlier in the trial. Nieto left office last year.

Cifuentes first spoke with prosecutors about the bribery allegation when he began cooperating with U.S. authorities in 2016. Under questioning from Guzman’s lawyer, Jeffrey Lichtman, Cifuentes said he wasn’t sure exactly when the bribe was delivered.