'Confirmed Fatalities' At Explosion At Manchester Arena

MANCHESTER, UK (CBS4) - Police confirm at least 22 deaths after an explosion at the Manchester Arena.

Another 59 others have been hurt.

In a tweet, the department said the explosion is being treated as a terrorist incident until police know otherwise.

CBS News reports that Ariana Grande was performing at the arena, when, as one Twitter user posted, "explosions" were heard from inside the arena.

The singer's representatives have confirmed that she is safe.

There were an estimated 20,000 people inside the arena for the show. It is unknown exactly how many are dead or injured at this time.

Police are asking for people to stay away from the arena.