Oxygen canisters explode, ammunition goes off during fire in Darlington County A home in Darlington County was considered a total loss after a fire on Thursday. (Source: Palmetto Rural Fire Department) By WMBF News Staff | March 11, 2021 at 3:47 PM EST - Updated March 11 at 7:57 PM FLORENCE, S.C. (WMBF) - A home in the Pee Dee is now considered a total loss after a fire in Darlington County caused oxygen canisters to explode. Chief Thomas Spivey with the Palmetto Rural Fire Department said crews were called to 701 Steerfork Drive in the Florence section of the county at 9:12 a.m. Thursday. Spivey said the fire was caused by someone in the home smoking while on a couch, which led to the couch being set on fire.