CHESTER, Pa. (AP) — An animal welfare group has tripled its reward offered for information after the charred remains of two dogs were found in a plastic container set ablaze in an alley in suburban Philadelphia.

Authorities say the animals, which appeared to be mixed-breed pit bulls, were found Saturday night in an alley behind a Chester garage.

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Officials say the dogs were inside a tote and may have been already dead when they were placed inside the bag and set afire. Necropsies are planned to determine the cause of death.

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The Justice Rescue group increased their $1,000 reward to $3,000 on Monday for information in the case.

The group says it has raised an undisclosed amount of money to cover necessary forensic tests.

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