Two portable potties have fallen victim to bombers in the Issaquah Highlands this month.

The most recent target, situated on a construction site along College Drive, was discovered July 16 by construction workers. Someone also took out a Honey Bucket at nearby Central Park July 4.

At the most recent site, construction workers discovered a second unspent pipe bomb in the bucket. Members of the Bellevue bomb squad disarmed the bomb by detonating it inside the potty.

“We encourage everyone in our community to be aware of what these devices look like, and alert authorities if they see any unusual behavior,” said Issaquah Police Chief Paul Ayers. “These types ofdevices can cause serious injury or even death.”

If you have any information that could lead to finding the suspects, contact Det. Sgt. Nash at 425-837-3200.

The city offered a few safety tips when dealing with homemade explosives.

– Monitor any unusual interest in chemicals and explosives among those you know.

– Know what these devices look like. Pipe bombs are usually constructed using a short section of steel water pipe that is closed at both ends with steel or brass caps. An explosive mixture is then located inside, with a fuse exposed.