More than 170 World War II-era bombs found under U.K. playground / Offshore wind firms told WWII bomb disposals must be less noisy / Bomb disposal called as 'suspicious items' found after fire / Buckie Harbour: Bomb disposal called in as 'suspicious object' found / WWII-era bomb safely detonated at sea after one of the largest peacetime evacuations in UK history / WWII bomb found in UK city of Plymouth to be disposed of at sea