GRANITE FALLS (AP) — Minnesota authorities are looking for a man they believe has information about the killing of a woman in Granite Falls.

Investigators continue to seek the public’s assistance locating Andrew Joseph Dikken.

Dikken is believed to be driving a 1996 brown GMC Sierra "club cab" pickup with a topper and Minnesota license plate number 032-GGL.

Anyone knowing his whereabouts is asked to contact the Granite Falls Police Department, the Yellow Medicine Sheriff’s Office, or 911.

Dikken should not be approached as he may be armed and dangerous.

The Bureau of Criminal Apprehension says Monday that police in the southwestern Minnesota town responded to a 911 call about 3:30 a.m. Monday. They found a 28-year-old woman dead of a gunshot wound, and a critically injured 28-year-old male.

The shooting victims have not been identified.

The man was taken by air to Hennepin County Medical Center.

Minnesota Bureau of Criminal Apprehension