A Mexican judge has issued an arrest order for 16 people - including 15 arrested in Nicaragua while carrying $9.2 million in cash - for their alleged role in transactions involving illicit proceeds, federal prosecutors said.

Fifteen of the people included in the arrest order are subject to criminal proceedings in Nicaragua, where they were detained on Aug. 21, 2012, while trying to enter that country disguised as a news crew from leading Mexican television network Televisa, Mexico's Attorney General's Office said in a statement Friday.

Authorities will seek the extradition of those 15 people, according to the AG's office, which withheld the name of the remaining suspect for confidentiality reasons.

The money was hidden in several of the six news vans - painted with the Televisa logo - the suspects were driving at the time of their arrest.

Traces of cocaine were found in the group's luggage.

Televisa has said the detainees are not employees of the network.

Nicaragua's Attorney General's Office has charged a total of 18 people who tried to pass themselves off as Mexican journalists with drug trafficking, money laundering, racketeering and membership in a gang dedicated to moving large amounts of drugs between Costa Rica and Mexico. EFE