ISLAMABAD, Nov. 6 (Xinhua) -- At least 11 people were killed and 33 others seriously injured when a passenger bus collided with a truck-trailer in Pakistan's eastern Punjab province on Thursday, rescue officials said.
The accident occurred in Pakpattan district when a bus traveling from Multan to Kasur collided with a speeding trailer, according to Rescue 1122.
The impact caused the bus to lose control and overturn, trapping several passengers in the wreckage, rescue officials said.
The injured were taken to nearby hospitals for emergency medical treatment, with several reported to be in critical condition.
Police said the identities of all the deceased and injured had not yet been officially confirmed, while the exact cause of the collision remained unclear. ■