PESHAWAR, Pakistan - Gunmen opened fire on a school bus in the Pakistani city of Peshawar on Tuesday, killing at least three children and the driver, a police official said.

"First a rocket was fired but it didn't hit. Then gunmen opened fire," said Sahibzada Sajjad, deputy superintendent of police in Peshawar, where Taliban militants, who are close to al Qaeda, often carry out attacks.  

Five children were wounded.