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The reward for information leading to an arrest in the gruesome slayings of four three-week old kittens has ballooned to more than $5,000 in the past week.

The Suffolk County SPCA announced Wednesday that the New York City chapter of the animal protection group contributed $2,500, pushing the reward to $5,200. The increase comes amid public outcry in the brutal throat-slashing of the four kittens.

Suffolk County SPCA Chief Roy Gross said the kittens were found dead Oct. 1 in the rear yard of a East Main Street business in Riverhead.

“It appeared that the bodies of the kittens had been thrown over the fence into the yard of the business,” he said in a press release. “Justice must be found for these innocent kittens.”

Anyone with information can call the Suffolk SPCA at 631-382-7722.