UPDATED: 8-21-18 (3:30pm)
Three adult male suspects have been identified and interviewed by the St. Marys Police Department. The explosive device has been identified as a commercial grade Artillery/Mortar Shell Firework. The device was placed inside a concrete cinder block to be used as a vessel to propel the device into the air. The device ultimately exploded inside the cinder block causing concrete shrapnel to be expelled in excess of 200 feet. The investigation is still continuing. This was an isolated incident and there is no threat to the public.
(8-20-18) The St. Marys Police Department are looking for your help in identifying persons who were connected with an explosion on Sunday near the 200 block of South Pear St.
You can contact the Police at 419-394-2325 with any information you can share.