One person died and several other were injured in a gas explosion that caused a building to collapse in Durham, North Carolina, on Wednesday, CNN reports. The blast occurred at around 10:30 a.m. when a contractor hit a 2-inch gas line while boring under the sidewalk, Durham police spokesman Wil Glenn told the network. Fifteen people have reportedly been transported to hospitals and a firefighter has been seriously injured. The two-story building where the blast occurred reportedly hosts a number of businesses, including a mental-health clinic and a coffee shop. Authorities have reportedly asked people to stay away from the area due to the “active” fire and the previous explosion.