A 16-year-old boy has been arrested on suspicion of causing criminal damage in connection with the felling of the 300-year-old Sycamore Gap tree in the north of England. Officers arrested the teenager amid an outpouring of sadness over the destruction of the landmark, which has been a feature of the site at Hadrian’s Wall in Northumberland for hundreds of years. The boy is in custody and assisting officers with their inquiries, Northumbria police said on Thursday. Locals and national park authorities said they were “struggling to see the logic” in the destruction of a sycamore which had long become “part of this area’s DNA” and had gone through thousands of changes of seasons. The tree, believed to have been about 300 years old, was made famous when it appeared in the 1991 film Robin Hood: Prince of Thieves, starring Kevin Costner. Police said they believed the felling had been a deliberate act of vandalism. Supt Kevin Waring of Northumbria police said on Thursday: “This is a world-renowned landmark and the events of today have caused significant shock, sadness and anger throughout the local community and beyond. “An investigation was immediately launched following this vandalism, and this afternoon we have arrested one suspect in connection with our inquiries. “Given our investigation remains at a very early stage, we are keeping an open mind. I am appealing to the public for information to assist us – if you have seen or heard anything suspicious that may be of interest to us, please let us know.” Police officers and park rangers at the scene said they believed the tree had been sliced skilfully with a sharp chainsaw by someone who knew what they were doing. Locals said they heard nothing during the night due to high winds from Storm Agnes – and woke to find the tree split from its stump. Andrew Poad, general manager at the National Trust, said he was at a loss about who would have reason to chop the tree down. He said: “We have ups and downs [with members of the public] but not to a degree anyone would do something like this. It’s a reason better known to themselves.” He added: “It’s part of this area’s DNA, that’s what I’m struggling with. I can’t see the logic in what’s happened.” Tony Gates, the chief executive of the Northumberland national park authority, said staff at the visitor centre had been in tears after arriving in the morning and finding the famous tree felled. He said: “Everyone’s just in shock. It’s one of the most iconic landscapes in the country. When we feel that sense of loss, how do we perpetuate the legacy and create a real sense of meaningfulness? “There have been lots of really good ideas from the community already and so we need to be open and hear those. Whatever happens next needs to be with the consent and ownership of everyone.” Kimberly McGuinness, the police and crime commissioner for Northumberland, was also at the scene. Like many people in the area, she also had a personal connection to the tree as her wedding invitations had featured an image of it. “I can’t understand why anyone would do this. It’s like stealing joy,” she said. She was not the only one for whom it was considered more than just a tree. Many people paying a visit said they had a deep personal connection to it. Leanne Scudamore got engaged at the tree in 2016, the same year it was voted tree of the year in a Woodland Trust competition. She said: “It’s a huge thing for us. I had loads of missed calls and messages this morning, everyone is just so angry. It’s really, really sad. They literally murdered one of Northumberland’s landmarks, I’m absolutely furious. “There are a lot of people in my situation with an emotional connection to it. It has a special place in our hearts. Apart from the emotional side, it’s devastating for businesses, too, who rely on the tourism.” The Twice Brewed Inn, a stone’s throw from the site, has offered a £1,500 bar tab to anyone with information that leads to the arrest and conviction of the person who carried out the offence. The pub’s logo is an illustration of the tree and it had been just about possible to see the landmark from its windows. Michael West, a retired teacher who lives in one of the houses closest to where the tree had stood, said he wished something positive could come of it. “There are lots of highly skilled people in the area and artists and the like. In Japan, when a tree falls down, they stick it in the ground. Maybe they could do that.” The National Trust said it would be collecting seeds and taking cuttings from the tree. Poad said: “It’s a sycamore so the stump could try to regrow but of course it won’t be the same.”