The weapons found include what Oakland County Sheriff Michael Bouchard described as an AR-style pistol and a Glock semi-automatic handgun.

Two men are now in custody for a plot at the Arts and Technology Academy of Pontiac graduation ceremony June 3. Authorities found guns under cars.

A possible mass shooting plot at a Michigan graduation ceremony was thwarted, authorities said, and police are searching for one of the suspects who remains at large. The apparent plot was revealed after authorities responded to a fight that broke out during the Arts and Technology Academy of Pontiac graduation,