Irmo Fire District crews are on scene of two wrecks consisting of multiple vehicles. The first wreck is a three car collision westbound 26 just past St. Andrews; the right lane is blocked and injuries are minor. There is a much bigger wreck at Harbison and St. Andrews. A four car wreck is blocking the intersection, one vehicle ended up on its side and we had to use the Jaws of Life to cut the patients out. Injuries sustained in this collision are moderate but not life-threatening. Roadways are expected to remain closed while crews work the scenes.