Investigators: Gas Caused House Blast That Killed Couple In Newfield

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NEWFIELD, N.J. (CBS/AP) - Authorities say an explosion that killed a New Jersey couple and leveled their home last week was caused by a natural gas build-up of some kind.

But the Gloucester County Fire Marshal's Office says it couldn't pinpoint the source of the gas leak or say what sparked the blast in Newfield on Saturday. The agency issued its finding Monday, listing the nature of the explosion as "undetermined."

An office spokeswoman said "numerous sources of ignition" set off the explosion that killed 73-year-old John Paladino and his 72-year-old wife, Carole.

Neighbors have said the couple had a new stove delivered the day before the explosion occurred. But the office's finding didn't mention the stove in its determination.

The blast also damaged other homes, including one neighbor's located nearly a block away.

"My door frame got completely pushed back. The screens on my windows were blown out," said Francesca Mancuso.

The Gloucester County Prosecutor's Office declined comment Monday on its ongoing investigation into the blast.

(© Copyright 2018 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)