A man and his son were killed when an LPG cylinder exploded in their house in Warje-Malwadi area of Pune on Wednesday. The deceased have been identified as Mohan Manik Mudawat, 44, and his son Pappu Mohan Mudawat, 26. Vishwajeet Kaingade, senior inspector, Warje-Malwadi Police Station said, “Preliminary investigation suggests that blast was due to faulty or leaking LPG cylinder.”