A series of explosions took place in a truck carrying 450 liquefied petroleum gas (LPG) cylinders at Udhowal village, 7km from Machhiwara, in the wee hours of Tuesday.
Preliminary investigations revealed that the incident took place due to the bad condition of the road. The truck received a jerk on a pit triggering explosions. Of the 450 cylinders, 80 exploded one after the other.
A deafening noise was heard in the area and pieces of cylinders flew in the air and fell on nearby houses. The truck driver and conductor, who escaped unhurt, informed the police. The firemen also reached the spot and it took them fours to douse the flames.
Officials of Bharat Petroleum Corporation Limited (BPCL) and district food and supplies department reached the spot to take stock of the situation.
"I heard a loud noise and rushed out of my house to see a ball of fire," said Alok Narang, a resident.
District food and supplies controller (East), Ludhiana, Sona Thind said: "Officials of the department and the BPCL are trying to ascertain the reason of the explosion."