WASHINGTON (CNN) -- Two U.S. Air Force F-15s escorted two Russian Bear long-range bombers out of an air exclusion zone off the coast of Alaska, U.S. military officials said Wednesday.

U.S. radar picked up the Russian turbo-prop Tupolev-95 planes about 500 miles off the Alaska coast.

The U.S. fighters from Elmendorf Air Force Base were dispatched to meet the bombers and escorted them out of the area without incident, the officials said.