- Associated Press - Wednesday, September 21, 2011

MONROE, Mich. (AP) — A spokesman for the Bureau of Alcohol, Tobacco, Firearms and Explosives said on Wednesday that a car bomb caused a blast in Michigan that seriously injured a man and his two sons.

AFT official Donald Dawkins said investigators were poring over the vehicle for clues as to who might have planted the device that detonated Tuesday on a street in Monroe.

Authorities have not identified the victims publicly, but Mr. Dawkins said they were a father and his two sons. Agents have spoken with the father, he said. All three victims are listed in serious condition at St. Vincent Medical Center in Toledo, Ohio. Monroe is about 35 miles southwest of Detroit and 20 miles north of Toledo.

The ATF is offering a reward of up to $10,000 for anyone who provides information leading to an arrest.