Late yesterday evening, police arrested a 20-year-old man on Cheetham Hill Road on suspicion of offences contrary to the terrorism act.
Meanwhile police have announced that they have been searching a house on Princess Road, Moss Side in connection with the attack
As it stands 18 people have been arrested in connection with the investigation, of which six people have been released without charge.
A total of 12 men remain in custody for questioning.
Following last night’s terror attack in London, Assistant Chief Constable Garry Shewan from Greater Manchester Police said:
“We’re deeply saddened to hear about last night’s horrific attacks in London and our thoughts are with everyone affected, including the emergency services responding to the incident.
“There are two large-scale events taking place in Greater Manchester today and we would like to assure people that these will still take place, but with additional security in place to ensure the safety of everyone.
“We have dedicated resources at both events, with a significant number of officers from both GMP and colleagues from other forces, some of which will be armed.
“There will be additional security checks taking place and everyone will be searched, including bags. We would ask people not to bring bags if they can, as this will help speed up entry.
“I’d like to remind people that the threat level remains at severe, which means an attack is highly likely.
Ariana Grande has reacted to the latest terror attack in London just hours before she is due to perform in a concert at Old Trafford.
As details emerged of the latest atrocity, Grande tweeted: “Praying for London.”
The explosive device used in the Manchester terror attack was ‘highly similar’ to bombs used by Islamic State jihadis in the 2015 Paris attacks and may even have been designed by the same person, The Mail on Sunday has been told.
The claim was made last night by security sources, who challenged the suggestion by Greater Manchester Police that suicide bomber Salman Abedi had largely acted alone.
Salman Abedi travelled to the capital Tripoli and the town of Sabratha to see operatives from Katibat al-Battar al-Libi, a cell linked to the 2015 Paris attack according to reports.
The 22-year-old jihadi also kept in contact with the group when in the UK, using disposable phones, a senior US intelligence official told The New York Times.