Subscribe | UPI Odd Newsletter Subscribe March 1 (UPI) -- Authorities in Britain said 2,600 properties had to be evacuated for the controlled explosion of an undetonated World War II bomb found at a construction site near the University of Exeter. Devon and Cornwall Police said Royal Navy bomb disposal teams were summoned to the area Friday morning when crews at a construction site to the west of the university discovered what was suspected to be an explosive device from World War II. Advertisement Police later confirmed the object was a German SC 1000 Sprengbombe, commonly known as a Hermann Bomb. The Royal Army evacuated the school and 2,600 nearby properties Saturday so the bomb disposal experts could conduct a controlled explosion of the object. Witnesses said the explosion could be heard from several miles away when the bomb was detonated at 6:10 p.m. Saturday. No injuries were reported, but some residents reported they returned to their homes to find windows had been shattered by the blast. Read More California family's missing French bulldog found 600 miles away in Mexico Cat rescued from Utah tree after four days Arizona thrift store worker returns veteran's Purple Heart to family