Manchester attack: What we know so far after suicide bombing leaves at least 22 dead and 59 injured

At least 22 people were killed in an explosion that tore through Manchester Arena following a pop concert on Monday night.

A further 59 people were injured in the attack which happened shortly after the conclusion of Ariana Grande’s show.

Manchester Police have deployed armed officers onto the streets of the city in the wake of the incident.

They confirmed on Tuesday the blast had been a terror attack by a suspected suicide bomber.

This is what we know so far:

• Police were called to an explosion at Manchester Arena at 10.33pm after an Ariana Grande concert attended by more than 21,000 people.

• More than 400 armed officers were deployed to the arena.

• In a statement given on Tuesday morning Chief Constable Ian Hopkins said that 22 were killed and 59 were injured in the explosion.

• The first victim named is 18-year-old Georgina Callander.

• Eight-year-old Saffie Rose Roussos has also been confirmed dead.

• He confirmed children and young people were among those killed or injured in the attack.

• The incident is being treated as terrorist-related and is thought to have been carried out by a lone man armed with an improvised explosive device.

• The suspect was killed in the explosion.

• Security services said they believe they know the identity of the attacker.

• A second man, aged 23, was arrested in connection with the incident.

• Manchester Arena said the explosion happened outside the venue, as people began streaming from the doors.

• Greater Manchester Police is still working to establish whether the suspect was acting alone or as part of a wider network.

• It is the worst terrorist attack in the UK since 56 people were killed in the 7/7 London bombings in 2005.

• Police also carried out a precautionary controlled explosion in the Cathedral Garden area of the city at 1.30am but later confirmed it was not a dangerous item.

• An emergency phone number has been set up in response to the attack, for people trying to find out information.

• Prime Minister Theresa May and Labour leader Jeremy Corbyn have agreed to suspend General Election campaign work until further notice.

• Mrs May said the incident was being treated as an "appalling terrorist attack" and is working to "establish the full details" of what happened.

• She is set to chair a meeting of the Government's emergency Cobra committee at 9am.

• Mr Corbyn described the attack as "horrendous" and said: "Today the whole country will grieve for the people who have lost their lives."

• Shortly after news of the explosion broke, singer Ariana Grande tweeted to say she is “broken”, adding: “I am so so sorry. I don’t have words.”