A North Charleston firefighter was injured Saturday night in an incident that is being described as an accident involving a firearm, the department's spokeswoman said Sunday.

The firefighter was off duty at the time, North Charleston Fire spokeswoman Bianca Bourbeau. She referred questions to the Berkeley County Sheriff's Office.

Deputies were called to a house on Cohen Circle about 7 p.m. Saturday, sheriff's office spokesman Dan Moon said. They found that a man was cleaning a gun and shot himself in the hand. The bullet went through his hand and hit his brother, a firefighter, in the leg. The bullet apparently severed an artery, causing extensive bleeding. The firefighter was taken to a hospital and remained in intensive care Sunday, Moon said. No further investigation is planned, he said.