- 3 updates
A female teacher was among the dead when a fire broke out aboard a school bus in Pakistan, according to the AFP news agency.
At least 16 children were killed in the incident near the city of Gujrat in the east of the country.
A police chief has said that a gas canister on board a school bus that burst into flames in Pakistan has been found intact and was not the cause of the fire, the AFP news agency reports.
Initial reports suggested that the canister, similar to that found in millions of vehicles in Pakistan, had caused a fatal explosion.
The police chief, identified as Dar Ali Khattak, said the fire was caused by a spark when the driver switched from using gas to the petrol engine.
He added that the children were aged between five and 15.
Seventeen Pakistani children burnt to death on Saturday when a gas cylinder on the bus taking them to school exploded, media said.
Ten children were injured in the blaze on the outskirts of Gujrat, 100 miles (170 km) southeast of Islamabad, DawnNews said.
Many vehicles in energy-starved Pakistan are powered by relatively cheap compressed natural gas and cylinder blasts are common.