General election campaigning has been suspended in the wake of a "barbaric" terrorist attack in Manchester at the end of a pop concert by Ariana Grande.

The First Minister will convene a meeting of the Scottish Government's resilience committee on Tuesday morning to discuss implications for Scotland.

The bombing at the Manchester Arena, has left at least 22 people dead and 59 injured, including children.

All parties are believed to be suspending general election campaigning after news of the blast on Monday evening.

The SNP had been due to reveal its manifesto on Tuesday, but the event has been postponed.

Nicola Sturgeon said: "My thoughts are with the victims, their families and all those who have been affected by this barbaric attack in Manchester.

"The Scottish Government is working with Police Scotland and the UK Government to ensure that we have a full understanding of the developing situation.

"I will convene a meeting of the Scottish Government's Resilience Committee this morning to receive an update and to consider any implications for Scotland."

Scottish Labour leader Kezia Dugdale said: "This is a barbaric and sickening attack, targeted at young and vulnerable people enjoying a night at a concert.

"It is a heartbreaking moment for our country and our thoughts are with the families and friends of those who have lost their lives and with those who are injured.

"Across the UK we are today grieving for the people of Manchester. I pay tribute to the dedication of the brave emergency service workers who ran into danger.

"We have all been moved by the actions of ordinary people who opened their doors, cared for scared youngsters, provided transport to concert-goers, and are giving blood at donor banks to help those injured.

"This great city is today demonstrating to the world the true spirit of Manchester."

Scottish Conservative leader Ruth Davidson said: "This is devastating news and all my prayers go out today to the families of those who were killed and injured.

"I can only imagine the pain they are feeling and their heartbreak is shared across the country. It goes without saying that our political campaigning will cease today.

"Terrorism has once against struck our country and, once again, we are faced with a sense of disbelief that someone could be capable of carrying out such an appalling act."

Speaking on Tuesday morning, Greater Manchester Police chief constable Ian Hopkins said the incident was the "most horrific" the force had faced.

He said the blast was believed to have been caused by one man who detonated an explosive device. He died at the scene.

He said: "What I can confirm is that there are children among the deceased.

"This has been the most horrific incident we have had to face in Greater Manchester and one that we all hoped we would never see.

"Families and many young people were out to enjoy a concert at the Manchester Arena and have lost their lives.

"Our thoughts are with those 22 victims that we now know have died, the 59 people who have been injured and their loved ones. We continue to do all we can to support them."

Manchester mayor Andy Burnham said the bombing was an "evil act".

He said: "We are grieving today but we are stronger. It will be business as usual as far as possible in our great city."

People in Manchester have offered refuge to anyone affected by the attack, using the hashtag Roomfor Manchester.

Mr Burnham added: "Even in the minutes after the attack they opened their doors to strangers.

"They gave the best possible response to those who seek to divide us."

The Prime Minister will chair a meeting of the UK Government's Cobra committee on Tuesday morning.

Witnesses reported hearing a "huge bang" at the venue shortly after the singer finished the concert on Monday evening.

One fan at the concert described how the explosion hit the venue as fans were leaving the building.

Majid Khan, 22, said: "We were all exiting the venue when around 10.40pm-10.45pm-ish a huge bomb-like bang went off that hugely panicked everyone and we were all trying to flee the arena.

"It was one bang and essentially everyone from the other side of the arena where the bang was heard from suddenly came running towards us as they were trying to exit.

"Everyone was just running to any exit they could find as quickly as they could.

"Everyone was in a huge state of panic, calling each other as some had gone to the toilet whilst this had gone off, so it was just extremely disturbing for everyone there."