MENDON (CBS) – Arson investigators are offering a $5,000 reward for anyone with information on the suspects who tossed small homemade explosives into the parking lot of a Mendon business and the driveway of a home.

Friday night around 11:30, a worker at Alicante restaurant saw someone in a gold-colored Honda Accord drive by and throw a device out the window.

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That worker picked it up and threw it into a dumpster.

Police say he’s lucky he wasn’t hurt, because as he was walking away, it exploded.

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The blast was powerful enough that it could have caused serious burns.

Police say another one of these devices went off a short time later at a home about a half-mile away.

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They are searching the town, but so far, no other devices have turned up.