A Colorado man is missing after he was involved in a boating accident on the Kenai.

Alaska State Troopers say four people were ejected from an out of control boat Friday.

The other three were able to swim to shore, but 63-year-old Phillip Keltner of Colorado was swept down the river, according to Troopers.

Several agencies have been searching for him.

The cause of the boat’s malfunction is under investigation.

Troopers say no one was wearing life jackets.

Anyone with information is asked to contact Troopers at (907) 262-4453.