(CNN)At least 70 people have died after a gas canister exploded in a train in Pakistan, authorities said.
The train was passing through the Punjab city of Rahim Yar Khan on Thursday morning when the cylinder exploded, causing a fire which spread through the train, according to local police officer Amir Taimoor.
Seventy people are dead and another 30 are injured, said Nadeem Zia, the medical supervisor of District Headquarters Hospital in Liaquatpur, a city in Rahim Yar Khan district.
