Two helicopters collided in midair near McMinnville Municipal Airport, southwest of Portland, at about 2:15 p.m. Thursday, according to the Associated Press.
The Federal Aviation Administration said the aircraft were a Robinson R22 carrying one pilot and an Airbus H125 carrying two people.
Emergency crews responded. Highway 233 was closed about a mile west of Dayton, along with some local roads.
Officials had not released information about the condition of those aboard at the time of the initial reports.
The FAA and National Transportation Safety Board are investigating. The cause of the collision has not been determined.
WE PNW / Roman Tretiakov
