Five suspected Colombian drug traffickers arrived at the Westchester County Airport in handcuffs Friday after being extradited to the U.S. to face drug and conspiracy charges.

Authorities say Javier "Carlos" Saldarriaga, Edgar "el Tio" Diaz, Pablo Ruiz, Carlos Baltan and Liliana Munoz were arrested in Panama Thursday. They allegedly hatched a plan to distribute methamphetamines and murder a DEA agent and informant.

Federal agents say the four men and a woman were part of a Colombian drug trafficking ring. In May, authorities say they uncovered a hit list with the name of a DEA agent handwritten on it. Baltan allegedly told an informant he was at war with the DEA after he claimed foreign law enforcement killed his friends. In addition, Baltan was allegedly heard discussing the purchase of 240 barrels of ephedrine.

The five remain in federal custody in Manhattan. If convicted, each person faces multiple life sentences. Officials say two more suspected drug traffickers remain at large.