WILSONVILLE, Ore. -- A man armed with a gun robbed a Wilsonville credit union Thursday, authorities said.

The robbery occurred just before 4 p.m. at On Point Credit Union on Wilsonville Road.

Clackamas County deputies set up a perimeter to search for the robber.

The man is described by the FBI as white and 5 feet 5 inches tall with a medium build. He was clean shaven and in his mid 20s to early 30s. He wore all black during the robbery, officials said.