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Chief Constable Ian Hopkins with the Greater Manchester Police gave an update early Tuesday morning about the explosion at the Manchester Arena Monday night at the conclusion of an Ariana Grande concert, confirming that 19 people died and 50 were injured.

The victims have been taken to six hospitals in the Manchester area, Hopkins said, and police are "treating this as a terrorist incident until we have more information." It's a "very concerning time for everyone," he added. "We are doing all that we can, working with local and national agencies, to support those affected as we gather information on what happened last night." He called on anyone with information to notify police, and urged the residents of Manchester to "remain vigilant."