Police have two vehicle descriptions, a dark-colored SUV and a white, four-door sedan.
The Grand Forks Police Department says it has received numerous reports of mail being stolen from residential mailboxes in the city.
Two suspect vehicle descriptions have been provided to police. One is a dark colored sport utility vehicle and the other is a white four-door sedan, according to police Sgt. Mike Jennings. Police have no further details.
Jennings said the thefts have happened in the late night and early morning hours in an area south of 24th Avenue and east of 20th Street South.
"It's quite a large area," Jennings said. "It's basically the southeastern quadrant of the city."
Police are recommending that residents not leave outgoing mail for pickup in their mailboxes overnight and that they ask the Post Office to hold their mail then they are out of town.