A Detroit Police officer guards the entrance to the department's 6th Precinct in Detroit, Monday, Jan. 24, 2011. (AP Photo/Paul Sancya)

WEST BLOOMFIELD TOWNSHIP, Mich. (AP) -- Authorities say a suburban Detroit police officer has been fatally shot and the suspected gunman is barricaded inside a home.

West Bloomfield Township Police Lt. Timothy Diamond tells the Detroit Free Press the 12-year veteran officer was shot about 10 p.m. Sunday as he entered a home in the Oakland County community. Police closed roadways in the area Monday morning as officers surrounded the home.

The newspaper says officers initially responded following a report of shots being fired inside the home.

A person who answered the telephone at the West Bloomfield Township police department Monday said Diamond wasn't immediately available.

The Oakland County sheriff's department says its SWAT team is on the scene. Some area homes have been evacuated

Diamond says the officer was a married father of four.