A fire in Middlesex County Wednesday night forced 25 people out of their homes.Investigators say the fire broke out shortly before midnight at the Oxford Arms Apartment Complex in Edison. According to fire officials, 16 apartments needed to be evacuated.All of the residents were able to escape the blaze without being injured. Three firefighters were hurt battling the fire, but were treated and released from the hospital.The Red Cross is assisting those displaced by the fire.Investigators are still trying to determine what caused the blaze.