Guardiola's family escape unhurt
Manchester City opened the gates of their Etihad Stadium as part of the area disaster plan as it was revealed the wife and two children of boss Pep Guardiola had attended the Ariana Grande concert that ended in carnage.
People needing assistance were directed to the Etihad hospitality suite where they were given emotional support.
Niall Pemberton, British Red Cross senior emergency response officer, said: "We have been on site since about 8am providing practical and emotional support to the friends and family of people affected by the incident.
"In reality that looks like helping people come to terms with the situation, dealing with the grief and the trauma that people might be experiencing and offering to help with the emotional needs people might have.
"The atmosphere is sombre but people are banding together and supporting each other.
"We obviously have volunteers that are specially trained to support people in situations like this to deal with any of the emotional effects people might have.
"Our role is to try and enable people to come to terms with it themselves and to process it in any way they can. We will be here as long as we are needed."
A tweet from City boss Guardiola yesterday read: "Shocked. Can't believe what happened last night. My deepest condolences to the families and friends of the victims. #Ilovemanchester".
City said in a statement: "The thoughts and prayers of our ownership, board and everyone at Manchester City are with the people of Manchester and all those affected following the horrifying events of last night's Manchester Arena attack.
"We have offered our full support throughout the night and this morning to the leaders of the city of Manchester itself and to the emergency services."
John Morris, interim director for crisis response in the north of England, said: "You can imagine the emotions in there are very high. We find in situations like this, families support families."