The wounded from the first attack were being treated at the scene of the second blast Two bombs exploded in Pakistan’s largest city Friday, one outside a hospital treating casualties from the first attack. At least 12 people were killed and more than 50 wounded.
The first blast targeted a bus carrying Shiite Muslim worshipers, most of them women and children.
Twelve people were killed in the attack, and 49 were injured, officials said.
The second bomb two hours later wounded several more people outside the entrance to the emergency ward at Jinnah Hospital, witness Imran Ahmad said.
Karachi has a history of religious violence and has been tense in recent weeks due to deadly clashes between rival political parties.
In late December, a bomb killed 44 Shiites attending a procession in the city, sparking riots.
View this site auto transport
