A mysterious photo that captured what appeared to a pack of some type of large animal along a highway went viral after the Arizona Department of Transportation posted the image to its Facebook page.

It was unclear what exactly the camera had caught, but in a light-hearted Facebook post, the agency suggested it was a family of sasquatches, then asked users what they thought.

“We might have spotted a family of sasquatches on SR 260 near Heber this afternoon. What do you think?“ the post dated Jan. 1 read.

By Tuesday morning, the pictures has been shared more than 3,900 times and had garnered more than a thousand responses. It also prompted some debate between Bigfoot believers and non-believers.

Several theories were floated and speculation ensued over what other type of creature it could be. One person, tongue-in-cheek, suggested it was actually Chewbacca from Star Wars and a family of wookies.

Some users responded with photos depicting Bigfoot on the loch ness monster, while another showed the creature on a unicorn.

At least one poster noted that the highway camera showed the same mysterious object for several days.

Eventually, a department spokesman responded and clarified the post was meant to be humorous.

“We always try to have a little fun with our Facebook and Twitter feeds,” Tim Tait told ABC News. “That way, we don’t just post news about crashes and road conditions, but a little something to engage our audience in different ways. This posting was one of those efforts – something that caught our attention, and we thought it might make some people chuckle.”