His owner went back to El Salvador, leaving the dog chained — and, facing starvation — behind a Brentwood home, authorities said. Fortunately, the 4-year-old pit bull got a reprieve on Tuesday, rescued by investigators.

The Suffolk SPCA said investigators found the dog tangled in a heavy chain, with no food or water available, and suffering from a leg wound. The pit bull was transported to Grady Animal Hospital where it was found to be in otherwise good health.

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The animal will soon be ready for adoption.

Animal abuse on LI

It was not clear when the owner abandoned the dog. But SPCA Chief Roy Gross said in a statement the owner chained the pit bull in the backyard, then left for El Salvador — “with no plans to return.”