BOONTON, N.J. (CBSNewYork/AP) — Two landscapers have died after they were trapped in a large, excavated hole outside a New Jersey home.

The accident occurred around 3:45 p.m. Wednesday when the trench gave way while the workers were excavating a drainage pipe at the Rockaway Valley Road home in Boonton.

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Oscar Portillo and Selvin Zelaya both became trapped under about 10 feet of dirt.

“One worker, they said, was at the bottom of the trench,” said Boonton Township Police Chief Paul Fortunato. “The second worker, my understanding is, jumped in to rescue the first worker.”

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One body was recovered Wednesday evening. Authorities later recovered the body of the second man. A third construction worker was also injured. He is recovering at a local hospital.

Police are still trying to determine what lead to the collapse.

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