Pakistan: Muslims kill 7 policeman guarding polio vacination team

Gunmen on motorcycles shot and killed seven police officers protecting polio vaccine workers Wednesday in the port city of Karachi, police said, the latest attacks in a nation where many fear aid groups harbor ulterior motives.

No health workers were harmed in either of the two attacks in Karachi, the capital of southern Sindh province, local police official Mohammad Ijaz said.

No group immediately claimed responsibility. The Taliban and other armed extremists have claimed the West is using vaccination programs as a cover for sterilizing or infecting children.