Police are investigating the deliberate felling of one of the UK’s most iconic trees, which appears to have been cut down in an act of vandalism.

The large tree at Sycamore Gap, next to Hadrian’s Wall in Northumberland, was apparently cut down overnight.

Northumberland National Park Authority officials believe the tree, known as Robin Hood’s Tree, was “deliberately felled” and asked people to stay away.

Photographer Ian Sproat said his “heart was ripped out” when he saw the damage.

Mr Sproat said he “drove straight over” from North Shields when he found out it had been felled.

“I was gobsmacked, anger set in and now sadness,” he said.

“My heart was ripped out.”

“They have just destroyed a part of the North East,” the 42-year-old continued.

“It’s like cutting down the Tyne Bridge or the Swing Bridge – it’s just as monumental

“It’s a living thing. I keep asking myself, ‘why would anyone do this?’.”

The National Trust said it was “shocked and saddened” to hear what “appears to be an act of vandalism”.

General manager Andrew Poad said the sycamore had been “an important and iconic feature in the landscape for nearly 200 years”.

Northumbria Police said inquiries were ongoing to establish whether any criminal offences had been committed.

Hexham MP Guy Opperman said everybody he had spoken to was “utterly stunned” and “devastated” at the damage.

He described the tree as a symbol of the North East that was “revered and loved across the world”.

Conservative MP Mr Opperman said it was “unquestionably a criminal act”, but added that “even if police did catch the perpetrator, the tree is still gone”.

Anna Charlton, who runs a tourist business within Northumberland National Park, described the tree as “an emblem”.

“I’m weeping. This isn’t just vandalism, it’s an attack on nature,” she said.

“It’s a terrible, terrible day for the North East. I’m devastated.”

In the past people have been known to leave decorated memorial pebbles by the tree.

“Those memories, belonging to generations of people, have now been destroyed,” Mr Sproat said.

Northumbria Police and Crime Commissioner Kim McGuinness said she was “incandescent that this looks like a deliberate act of vandalism”.

“I’m devastated that the famous sycamore is gone. It was an iconic North East landmark standing tall in our beautiful Northumberland,” she added.

By BBC Look North correspondent Mark Denten

After a 20-minute walk from the nearest car park, Sycamore Gap has always surprised visitors. You come over the brow of the hill and there it is.

But today, the surprise for visitors was different.

One of the most iconic trees in Britain, and probably the world, was found felled.

One man visiting from London told me he’d come up just to see it. He couldn’t find the words to express his shock.

A professional photographer who captured it hundreds of times told me he felt grief for part of his life.

“I proposed to my wife here,” he told me.

And in this most beautiful of locations, a crime scene police tape now surrounds the fallen tree as police investigate who did this.