All political parties have suspended general election campaigning after the fatal bombing in Manchester.

Prime Minister Theresa May is set to chair an emergency Cobra meeting in London into the suspected terror attack at the Ariana Grande concert, which left 22 dead and more than 50 injured.

Mrs May, Labour leader Jeremy Corbyn and other party leaders have all expressed their horror at the attack.

The SNP has postponed the launch of its manifesto which was due on Tuesday.

The prime minister said all her thoughts and those of the nation were with the victims of Monday's blast at the Manchester Arena and their families.

"We are working to establish the full details of what is being treated by the police as an appalling terrorist attack," she said.

After chairing the Cobra meeting, Mrs May is expected to make a statement in Downing Street.

Mr Corbyn said he was "horrified" by the incident and had been briefed about the operational response by Greater Manchester Metro Mayor Andy Burnham. The Labour leader also spoke to the prime minister overnight.

"Today the whole country will grieve for the people who have lost their lives," Mr Corbyn said.

"I would like to pay tribute to the emergency services for their bravery and professionalism in dealing with last night's appalling events. I have spoken with the prime minister and we have agreed that all national campaigning in the general election will be suspended until further notice."