Manchester experienced one of its most tragic nights on Monday as an explosion caused 22 deaths and wounded a further 59 people after an Ariana Grande concert. 

Pep Guardiola's family were in MEN Arena

Reports of an explosion were heard just after 22:30 local time, as fans of the popstar left the Manchester Evening News Arena.

On Tuesday morning, British Prime Minister Theresa May confirmed that the attack is being viewed as an act of terrorism. 

Diario AS can confirm that Cristina Serra, the wife of Pep Guardiola, was at the concert, along with their two daughters, María and Valentina.

City manager in state of shock

The Manchester City manager expressed his shock, and sent his condolences to those affected, through social media.

Meanwhile, tributes have flooded in from the football world, including messages from Cristiano Ronaldo and Wayne Rooney.