Suicide attack at Pakistan polio center kills 14, officials say

On the third day of a massive anti-polio drive in southern Pakistan, one of only two countries where the disease has not been eradicated, a suicide bomber blew himself up outside a vaccination center Wednesday, killing at least 14 members of Pakistani security forces.

Officials said 20 others were wounded, some critically, in the explosion in Quetta, the capital of Baluchistan province.

It was the latest deadly attack aimed at the anti-polio campaign in Pakistan, where Islamist extremist groups believe the vaccine is a front for Western espionage. The Pakistani Taliban militant organization claimed responsibility for the bombing in a Facebook post.

Officials said the...