TRIPwire, 5 June 2023 On 2 June 2023, at approximately 1106 hours local time, the Grosse Pointe Farms Department of Public Safety found a suspected pipe bomb after a Pier Park employee alerted authorities that they had thrown a suspicious metal object, found near the pedestrian drop-off area, into the lake. The ATF, Detroit Police Department Bomb Squad, and Michigan State Police responded to assist. The device was recovered from the lake and bomb technicians determined it was a pipe bomb measuring approximately 5-6 inches long, before rendering it safe. No further device details were provided. The investigation is ongoing.