ADAMS, Mass. — The state police bomb squad was called to Airport Road on Thursday morning to investigate a cluster of pressurized bottles containing an unknown liquid.

Police Chief Richard Tarsa said police responded to the scene around 7:30 a.m. after a truck ran over one of the plastic bottles causing it to burst, making a loud sound.

Tarsa said the bottles were scattered in the road and contained some sort of chemical that caused them to pressurize, similar to a bottle of soda.

"We had a bottle that was pressurized and a vehicle drove over it and it erupted, which sounded like an explosion but was just the eruption of the device," the chief said. "It was not an explosive device. This is not an IED by any means. It's a sealed water bottle with a chemical in it that creates pressure."

Although there was no damage to the car or driver, Tarsa said the road was closed and Fire Department and the state police bomb squad were called to investigate.

There were three other bottles on the road. One was defective but the other two were live.

"The bomb squad came out and they used the robotic arm," he said. "It grabs the bottle and the arm is designed to depressurize the bottle by putting a hole in it and making it inactive."

The first bottle was successfully depressurized, however, the second had built up enough pressure that when the arm touched it, it burst.

Tarsa said the police are unsure who set the bottles and the incident is under investigation. He added that whoever placed the bottles set up an incredibly dangerous situation for themselves and those passing through the area.

"This is a stupid thing to do because whoever made these devices there was the ability for the bottles to go off in their hands and with chemicals, you are looking at chemical burns," Tarsa said. "And being in a roadway that is a place where a lot of people walk their dogs ... what happens if a dog latches on to it?"

Tarsa said the bottles were somewhat isolated on the rural road and in the end, everything was handled according to protocol, and there were no damages or injuries.