A bomb explosion on a bus killed at least 11 people in Pakistan's western city of Quetta on Monday, while 22 more were injured, according to the police. The bomb exploded on the roof of the bus, which was bound for the city's suburbs, carrying dozens of passengers home from work. No group has claimed responsibility for the attack yet.

“This is a cowardly act that has targeted innocent people,” said Sarfaraz Ahmed Bugti, Baluchistan’s home minister. “We are fighting against terrorism here. And we will keep fighting until the last terrorist is killed.” Quetta is the capital of the Baluchistan province, which has seen almost a decade of separatist violence against government and security forces, as well as non-Baluch ethnic groups, Reuters reported.