WASHINGTON - Investigators say the Air Force general fired in October as commander of the U.S. land-based nuclear missile force engaged in "inappropriate behaviour" while in Russia, including heavy drinking and rudeness to his hosts.

In response to findings by the Air Force inspector general, Maj. Gen. Michael Carey received what the Air Force calls a "letter of counselling" That's a form of discipline for misbehaviour that's not criminal in nature.

The investigation report was released Thursday and said Carey was guilty of conduct unbecoming an officer. It said he misbehaved while leading a U.S. delegation to a nuclear security training exercise in Russia in mid-July.

The report said Carey was frequently rude to his Russian hosts and others, and that he associated with foreign national women whom he acknowledged were "suspect."