Reports are flying in from social media of 40-plus unmarked police or military vehicles with sirens going travelling through Barnstaple today (Monday). Numerous people on Facebook and Twitter reported seeing them travelling up the A361 North Devon Link Road and other reports suggest a number have gone to RMB Chivenor. Carole Flockhart-Brown posted on Bideford Banter: Any one know what is happening near Barnstaple, we are on link road heading towards south Molton, just had 8 unmarked white transit vans and 3 unmarked cars all with blue lights heading at speed with sirens towards barny. Jaime Watts said: We r sat in traffic on the a361 going toward south Molton we have now seen in excess of 30 vehicles with blues and twos in the shapes of vans and unmarked cars and 4x4s very strange! But the answer was found fairly quickly, with BBC Spotlight posting on its Facebook page: Police say emergency vehicles travelling between Tavistock and Barnstaple are part of a military exercise and there is no cause for concern.