Three people were killed and four injured when the roof of their house collapsed after an LPG cylinder exploded in Rajasthan`s Chittorgarh district on Friday, police said.

The incident took place in Meetharam Kheda area of the district when the cylinder caught fire. The deceased were identified as Purushottam Bhambhi (40), his wife Jamuna Bai (38) and his mother Sanjani Bai (60), Station House Officer (SHO) Darshan Singh said. Their bodies were handed over to their family members after postmortem, he added.