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A burning passenger van is seen following an explosion in Sehwan Sharif of southern Pakistan, April 19, 2018. At least four people including women and children were killed while 10 other passengers of a van sustained burn injuries as its liquefied petroleum gas cylinder exploded in Pakistan's southern Sindh province, local media reported on Thursday. (Xinhua/Stringer)

ISLAMABAD, April 19 (Xinhua) -- At least four people including women and children were killed while 10 other passengers of a van sustained burn injuries as its liquefied petroleum gas cylinder exploded in Pakistan's southern Sindh province, local media reported on Thursday.

According to the reports, the passenger van was heading towards Sehwan Sharif city in the province from Tando Masti Khan town when it caught fire suddenly following a huge cylinder blast.

The incident happened on the national highway in Khairpur, a city in the southern Sindh province.

Following the incident, fire brigade teams reached the spot and extinguished the fire.

The massive fire caused the death of three persons on the spot, while another passenger succumbed to his burn injuries on the way to hospital, said Dunya News.

Rescue officials said that the incident happened due to poorly maintained vehicle.

All the injured passengers have been shifted to the Civil Hospital Khairpur where they are being treated for their burn injuries. Several among those injured are said to be in a critical condition.?