NEW : Gunmen may be drug dealers retaliating several recent arrests , police say . The suspects were arrested in the early morning hours of Friday after a shootout with officers at an apartment complex on East 149th Street and Amsterdam Avenue near Lenox Avenue, officials said. Five of the dead were federal police officers , one was a female city officer , mayor says . Another federal officer was gravely wounded , Reyes said , and a city officer was wounded but not with life-threatening injuries . Two officers , one civilian wounded .
NEW : Gunmen may be drug dealers retaliating several recent arrests , police say . The suspects were arrested in the early morning hours of Friday after a shootout with officers at an apartment complex on East 149th Street and Amsterdam Avenue near Lenox Avenue, officials said. Five of the dead were federal police officers , one was a female city officer , mayor says . Two officers , one civilian wounded .