Four policemen were killed on Sunday in Sheikhupura after an official vehicle overturned on Faisalabad Road.
Three people, including two police officers, were injured in the accident. The van, which belonged to the Gulberg police, overturned after a tyre burst, explained SHO Azhar Naveed.
The police were transporting a suspect in the van.
One of the injured officers said that there were 10 people in the van at the time of the accident. Two died on the spot.
The three people injured in the accident were transported to Lahore after their condition worsened.