The investigation into the house explosion that ripped apart a home and shook a neighborhood continues as officials seek to speak to the victim.

"We haven’t been able to speak to him. So the investigation is still ongoing," said Jennifer Mieth a representative of the Office of the State Fire Marshal.

Fire officials confirmed last month that gas was the source of an early morning house explosion Sunday.

"It has been confirmed to be a gas explosion and the cause is not determined yet," said Fire Chief James Fortin.

At 1:04 a.m. on Sunday morning, multiple 911 calls were received alerting the Marlborough Fire Department to a house explosion at 15 Grant Ct. Neighbors reported feeling the explosion which left the house's walls blown out and the structure on fire