Manchester United and Manchester City have paid tributes to all those killed and injured in Monday night's terror attack at Manchester Arena.
Greater Manchester Police has confirmed that 22 people have died and 59 were injured during an explosion which happened shortly after Ariana Grande's concert finished at the sold-out Arena.
Police say the attack was carried out by one man, who died in the blast.
GMP chief constable Ian Hopkins says police are treating the blast as an act of terrorism "until we know otherwise".
Police have set up a help centre for anyone needing assistance at Gate 11 of City's Etihad Stadium.
Both Manchester clubs, City captain Vincent Kompany, the Football Association and UEFA were among those to express their condolences to the victims and their families.
Twitter
This content is provided by Twitter, which may be using cookies and other technologies.
To show you this content, we need your permission to use cookies.
You can use the buttons below to amend your preferences to enable Twitter cookies or to allow those cookies just once.
You can change your settings at any time via the Privacy Options.
Unfortunately we have been unable to verify if you have consented to Twitter cookies.
To view this content you can use the button below to allow Twitter cookies for this session only.
Twitter
This content is provided by Twitter, which may be using cookies and other technologies.
To show you this content, we need your permission to use cookies.
You can use the buttons below to amend your preferences to enable Twitter cookies or to allow those cookies just once.
You can change your settings at any time via the Privacy Options.
Unfortunately we have been unable to verify if you have consented to Twitter cookies.
To view this content you can use the button below to allow Twitter cookies for this session only.
Twitter
This content is provided by Twitter, which may be using cookies and other technologies.
To show you this content, we need your permission to use cookies.
You can use the buttons below to amend your preferences to enable Twitter cookies or to allow those cookies just once.
You can change your settings at any time via the Privacy Options.
Unfortunately we have been unable to verify if you have consented to Twitter cookies.
To view this content you can use the button below to allow Twitter cookies for this session only.
Twitter
This content is provided by Twitter, which may be using cookies and other technologies.
To show you this content, we need your permission to use cookies.
You can use the buttons below to amend your preferences to enable Twitter cookies or to allow those cookies just once.
You can change your settings at any time via the Privacy Options.
Unfortunately we have been unable to verify if you have consented to Twitter cookies.
To view this content you can use the button below to allow Twitter cookies for this session only.
Twitter
This content is provided by Twitter, which may be using cookies and other technologies.
To show you this content, we need your permission to use cookies.
You can use the buttons below to amend your preferences to enable Twitter cookies or to allow those cookies just once.
You can change your settings at any time via the Privacy Options.
Unfortunately we have been unable to verify if you have consented to Twitter cookies.
To view this content you can use the button below to allow Twitter cookies for this session only.
Twitter
This content is provided by Twitter, which may be using cookies and other technologies.
To show you this content, we need your permission to use cookies.
You can use the buttons below to amend your preferences to enable Twitter cookies or to allow those cookies just once.
You can change your settings at any time via the Privacy Options.
Unfortunately we have been unable to verify if you have consented to Twitter cookies.
To view this content you can use the button below to allow Twitter cookies for this session only.
Twitter
This content is provided by Twitter, which may be using cookies and other technologies.
To show you this content, we need your permission to use cookies.
You can use the buttons below to amend your preferences to enable Twitter cookies or to allow those cookies just once.
You can change your settings at any time via the Privacy Options.
Unfortunately we have been unable to verify if you have consented to Twitter cookies.
To view this content you can use the button below to allow Twitter cookies for this session only.
Twitter
This content is provided by Twitter, which may be using cookies and other technologies.
To show you this content, we need your permission to use cookies.
You can use the buttons below to amend your preferences to enable Twitter cookies or to allow those cookies just once.
You can change your settings at any time via the Privacy Options.
Unfortunately we have been unable to verify if you have consented to Twitter cookies.
To view this content you can use the button below to allow Twitter cookies for this session only.
Twitter
This content is provided by Twitter, which may be using cookies and other technologies.
To show you this content, we need your permission to use cookies.
You can use the buttons below to amend your preferences to enable Twitter cookies or to allow those cookies just once.
You can change your settings at any time via the Privacy Options.
Unfortunately we have been unable to verify if you have consented to Twitter cookies.
To view this content you can use the button below to allow Twitter cookies for this session only.
A statement from United said: "Everyone at Manchester United is deeply shocked by last night's terrible events at the Manchester Arena.
"Our thoughts and prayers go out to all those affected, including our supporters, club staff and members of our community such as the children from our Manchester United Foundation partner schools who were attending the concert at the Arena.
"Club staff are ready to help the police and other emergency services in any way that may be required at this challenging time for our city.
"Old Trafford's Megastore, Museum, Red Cafe and Stadium Tour are all closed to the public today."
United fans travelling to Stockholm for the Europa League final have been advised that all flights from Manchester Airport are proceeding as scheduled.
United are due to play Ajax in the final at Stockholm's Friends Arena on Wednesday evening.
Twitter
This content is provided by Twitter, which may be using cookies and other technologies.
To show you this content, we need your permission to use cookies.
You can use the buttons below to amend your preferences to enable Twitter cookies or to allow those cookies just once.
You can change your settings at any time via the Privacy Options.
Unfortunately we have been unable to verify if you have consented to Twitter cookies.
To view this content you can use the button below to allow Twitter cookies for this session only.
Twitter
This content is provided by Twitter, which may be using cookies and other technologies.
To show you this content, we need your permission to use cookies.
You can use the buttons below to amend your preferences to enable Twitter cookies or to allow those cookies just once.
You can change your settings at any time via the Privacy Options.
Unfortunately we have been unable to verify if you have consented to Twitter cookies.
To view this content you can use the button below to allow Twitter cookies for this session only.
