An anarchist group has claimed responsibility for a vast fire that caused major damage to a police firearms training center, under construction in Bristol.The Informal Anarchist Federation (IAF), which has been involved for several arson attacks in southwest England before, said in a statement that they started a fire that is burning “more than 12 hours later”. The fire was actually burning more than 24 hours after it started at the construction site at Black Rock Quarry in Portishead early on Tuesday. Smoke from the fire, which had took over half of the £16 million building, could be seen from 12 miles away. "More than 12 hours later the fire is still burning. It put smiles on our faces to realize how easy it was to enter their gun club and leave a f*** you signature right in the belly of the beast," the groups said in their statement published on the 325 website. Te police said they are “devastated to see the impact of the fire”. "The damage is extensive and we'll be working closely with fire investigators and our own forensic teams to understand what happened to cause such a large fire,” Avon and Somerset assistant chief constable Dave Hayler said.