A bomb attack against a polio vaccination centre in Pakistan has killed at least 14 people. Most of the dead were reportedly police deployed to protect health workers.
The blast hit a police van in Quetta, the capital of the unstable Balochistan province in the country’s southwest.
At least 20 people were injured; police are investigating whether it was a suicide bomb.
Attacks by Islamist militants who believe polio vaccination is a Western conspiracy had declined last year.
Pakistan and Afghanistan are said to be the only two countries where the disease is still endemic.