Four people, including two children, found dead at scene of New Jersey mansion fire being investigated as arson.
The mansion that caught fire near the New Jersey shore is owned by a tech company executive, hours after a blaze also broke out at the house of a relative, officials said.
Video showed smoke pouring from the roof of the two-storey home in Colts Neck as firefighters battled the blaze.
The house is surrounded by fields and has a swimming pool.
Helicopter footage showed a sheet in the middle of the yard next to the house with police tape cordoning off the area.