NewsUK NewsPlymouthLIVEUpdated 11 mins agoA 100-metre cordon has been put in place in Plymouth after a suspected WW2 bomb was foundPolice have closed the Billacombe Road roundabout junction with Stentaway Road(Image: Carl Eve/Plymouth Live)A 100-metre cordon has been put in place after a suspected WW2 bomb was found near a quarry in Plymouth.Devon and Cornwall Police said it was called at around 12.30pm today to a report that an "unknown device" had been discovered by contractors at Colesdown Hill. A force spokesperson said: "Officers have informed the EOD [Explosive Ordnance Disposal team] who will be in attendance. As a precaution, a 100-metre cordon has been put in place and local diversions."Schools in the area have reportedly sent letters to parents informing them that a suspected unexploded WW2 bomb has been discovered, Plymouth Live reports.View PostView PostView PostView PostToday17:54 BSTWhy are so many unexploded bombs found in Plymouth?Plymouth was one of the most heavily bombed British cities during World War Two.More than 50 bombing raids were carried out on the city between 1941 and 1944, killing about 1,178 civilians.Official records estimate that at least 2,820 bombs were dropped on Plymouth, with about 10 per cent failing to detonate, leaving unexploded ordnance scattered across the area.Today17:50 BSTMap shows location of incidentA map shows Colesdown Hill, where an unknown device was found near a quarry.Today17:44 BSTMotorbike dealer shut due to 'potential WW2 bomb found across road'GT Motorcycles 2012 Limited said on Facebook: "Due to unforeseen circumstances our premises will be closed until further notice."The potential WW2 bomb has been found across the road by the quarry and bomb squad are currently on their way to access the situation. We appreciate your understanding and sorry for any inconvenience caused!"‌Today17:44 BSTA-road shut in both directionsTraffic monitoring service Inrix says the A379 Elburton Road has been closed in both directions as a result of the incident.There are also reports of queueing traffic from Southernway to Stentaway Road.Today17:44 BSTBomb disposal unit called after unknown device foundDevon and Cornwall Police said it was alerted at around 12.30pm today after contractors discovered an unknown device at Colesdown Hill.A force spokesperson said: "Officers have informed the EOD [Explosive Ordnance Disposal] who will be in attendance. As a precaution, a 100 metre cordon has been put in place and local diversions."‌