The Daily Times of Salisbury quoted police as saying the deaths in the town of Princess Anne were caused by carbon monoxide poisoning.
Princess Anne police said in a statement that they were called to a house after a person called police about a missing co-worker. When police entered the house, eight bodies were found.
Police said the youth range in age from 6 to 16 and all are related. Princess Anne police also said that they do not suspect foul play.