Updated

Vandals spent the early morning hours targeting Smart cars in San Francisco Monday, flipping three vehicles in the Bernal Heights and Portola neighborhoods, KTVU reports.

The attacked caused damage to all three of the cars.

Police were investigating whether this was a synchronized attack on smart cars or teenagers playing a prank. The first incident of vandalism was reported at around 1 a.m. when the first smart car in Bernal Heights was found flipped on its roof.

Ten minutes later, another smart car was found on its side a couple blocks away. The last incident of vandalism happened around 1:30 a.m. in the Portola neighborhood at Bowdoin and Sweeny streets.

One witness told KTVU he saw a group of eight people in hooded sweatshirts walk up to his roommate’s smart car and flip it vertically.

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