NATICK (CBS) — Police in Natick are asking residents to be on alert after reports of an animal attack.

Two people reported being attacked by an animal described as either a gray fox or coyote on Saturday evening in a residential area, Natick police said in a Facebook post.

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The incidents were reported in the 100 block of East Central Street.

Residents say despite being a busy street, animals are found roaming the area often.

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“It’s definitely pretty dark at night and I’ve seen things running around,” one resident told WBZ-TV. “It’s definitely concerning, there are a lot of young children and pets in the area I would really be concerned.”

Environmental police responded, but haven’t yet found the animal.

Police say a gray fox or coyote may be responsible for two reported attacks. (Image c redit Natick police)

Police say a gray fox or coyote may be responsible for two reported attacks. (Image c redit Natick police)

“This animal is aggressive and is quite possibly not healthy,” Natick police said. “If you see this animal call 911 immediately.”

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WBZ NewsRadio 1030’s Carl Stevens reports: