Federal agents on Wednesday fatally shot a man they described as the leader of a violent Sunni Muslim separatist group in Detroit.

 

Mr. Abdullah, whom the agents were trying to arrest in Dearborn on charges that included illegal possession and sale of firearms and conspiracy to sell stolen goods, refused to surrender and began firing at them from a warehouse, according to a statement by the Federal Bureau of Investigation and the United States attorney’s office in Detroit. He was shot in the return fire, the statement said.