It indicates that an attack is highly likely rather than imminent
Greater Manchester Police described the evacuation in the inner-city area as a "precautionary measure to ensure everyone's safety".
Latest update pic.twitter.com/3QXPonaGqM— G M Police (@gmpolice) May 27, 2017
Two further arrests were made in connection with the Manchester bombing after raids took place overnight.
In total eleven men have been taken into custody after the attack.
The Greater Manchester Police released an update overnight saying that they had arrested two people at an address in Cheetham Hill in the city.
They also said that a controlled explosion took place before they could gain entry into the premises. In total 13 people have been arrested over the attack but two were later released without charge.
Latest update pic.twitter.com/KiKoeNzfWf— G M Police (@gmpolice) May 27, 2017
Police in the UK say they want people to 'enjoy themselves' as security's increased at today's FA Cup final at Wembley, the Premiership Rugby Cup Final as well as The Great Manchester Run on Sunday.
Police say they have made 'immense' progress' with the investigation into the associates of suicide bomber Salman Abedi and also said that a "large part" of his suspected network had been dismantled.
Chief constable Ian Hopkins says there'll be no let-up over the weekend.
Shopworker Mohammed El-Hadouri says his business partner recently rented a flat to suicide bomber Salman Abedi.
He says there were 'strange' things happening at the property during the time he rented it.