LOS ANGELES (CBSLA.com) — A motion by Michael Antonovich was approved Tuesday to offer a reward for credible information in connection with the recent apparent chemical attacks on dogs.

The Los Angeles County Board of Supervisors approved the reward of $25,000, which would be supplied for information leading to the arrest and/or conviction of those responsible.

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Authorities say there have been at least seven known reported incidents of dogs being found or taken to shelters with possible caustic chemical burns on their backs.

The incidents occurred July 20 to Aug. 20, the Los Angeles County Sheriff’s Department said in a written statement,

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“Investigators have not yet been able to determine if the injuries sustained by the dogs are as a result of an intentional criminal act or some other cause,” the statement added.

Deputies said the injured dogs were in Lancaster, Palmdale and Kern County’s Rosamond, among other areas.

So far, a golden retriever and six pit bulls have been found with injuries.

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Anyone with more information was asked to call LASD Lancaster Sheriff’s Station Detective Daniel Gore at (661) 940-3851 or (661) 948-8466 or the Los Angeles County Department of Animal Care and Control at (661) 974-8096.