A British Cypriot girl has been named as the youngest victim of the terror attack at the Ariana Grande concert at Manchester Arena on Monday night.

Eight-year-old Saffie Rose Roussos was at the concert with her mother Lisa and sister Ashlee Bromwich, who are both in critical condition.

The young girl has been described by her school principal as “a beautiful little girl in every aspect of the word”.

“She was loved by everyone and her warmth and kindness will be remembered fondly,” Chris Upton told The Guardian.

“The thought that anyone could go out to a concert and not come home is heartbreaking.”

Islamic State (IS) has since claimed responsibility for the attack, which was carried out by 22-year-old British-born Salman Abedi who detonated the bomb as concertgoers left the show.

In a statement published on its social media channels, IS said that “one of the caliphate’s soldiers placed bombs among the crowds” and threatened more attacks.

Meanwhile, a 23-year-old man believed to be Abedi’s brother according to unconfirmed reports, was arrested in connection to the bombing in southern Manchester.

Roussos is one of 22 people killed in the attack, with 59 more injured and is the deadliest militant assault in Britain since 52 people were killed in suicide bombings on London’s transport system in July 2005.