A Newnan man critically injured in an explosion at Amicalola Propane on Easy Street in Dawson County earlier this month has died from his injuries.

Jimmy Lassetter, 45, died Thursday at the Grady Memorial Hospital Burn Unit, according to an obituary released by the Higgins Hillcrest Chapel Funeral Home in Newnan.

The Dec. 5 explosion happened while unloading a truck carrying a shipment of residential propane tanks. The off-loading tanks collided with each other, shearing the valve from one tank and spraying a cloud of propane.

The propane found an ignition source and an explosion occurred, according to Dawson County Emergency Services.

Deputy Fire Chief Tim Satterfield, who serves as the county fire marshal, on Monday said the explosion was ruled an accident.

Lassetter suffered second- and third-degree burns across 80 percent of his body. Another worker, Casey Rickett of Dawsonville, also suffered second- and third-degree burns.

Rickett has been released from the Grady Memorial Hospital Burn Ward, an employee of Amicalola Propane said last week.