1 DEA agent killed, 2 officers hurt in shooting aboard Amtrak train: Tucson police

One agent with the Drug Enforcement Administration was killed and two other officers were injured in a shooting on board an Amtrak train.

One Drug Enforcement Administration agent was killed and two other officers were injured in a shooting on an Amtrak train that was stopped in Tucson, Arizona, authorities said.

Officers boarded the train Monday morning to perform a routine check for illegal guns, money and drugs and encountered two people on the second level of the double-decker Amtrak car, Tucson police said.

One individual was detained, but a second person revealed a handgun and opened fire, police said.

One DEA agent was killed and another DEA agent is in critical condition, police said.