A Newnan man critically injured in an explosion at Amicalola Propane 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 a shipment of residential propane tanks was being unloaded from a truck at the business on Easy Street in Dawson County.

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 Chief Tim Satterfield, who also serves as the county fire marshal, said Monday that the explosion has been 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 since been released from the Grady Memorial Hospital Burn Ward, according to an employee of Amicalola Propane.

Funeral services for Lassetter were held at 3 p.m. Sunday at Unity Baptist Church in Newnan.