India, March 26 -- The Dharavi police have arrested four people after more than 70 LPG cylinders placed in a truck that was parked in an illegal parking lot near the Maharashtra Nature Park on Sion Dharavi Link Road exploded and led to a massive blaze on Monday evening.

While no injuries were reported, at least 10 vehicles were burnt in the fire, which was categorised level II (medium emergency) and required 19 fire tenders to douse, according to officials.

The arrested accused included the owner and manager of the gas agency, the operator of the illegal parking lot and a ration shop owner whose truck was also parked at the spot, due to which other vehicles could not be moved, said the police.

"Prima facie, we suspect the fire had star...