The force attended Dad’s Garage by Paulo, between Vicarage Road and The Hornets, at 8.40am on Saturday (September 20) following reports of a suspicious device being found. "They carried out a controlled explosion, purely as a precaution. Officers were seen stopping cars near Watford FC's Vicarage Road stadium and turning motorists back. 'Controlled explosion' carried out after suspicious device foundBomb squad complete 'controlled explosion' of 'WW2 shell' in WatfordSaturday's scenes came just days after another controlled explosion was carried out in the same park. Bomb disposal vehicle in Watford on Saturday.