Reports are spreading across the internet about an explosion after pop singer Ariana Grande’s concert in Manchester Arena in England. Law enforcement sources in the United States and Britian have reported to NBC News that there were two possible explosions. They have stressed that information is preliminary and could change.
Greater Manchester Police said only that there were "a number of confirmed fatalities and injuries" as hundreds of fans fled the arena. Emergency crews rushed to the scene after the possible blasts, which were first reported about 10:40 p.m. (5:40 p.m. ET).
Multiple senior U.S. intelligence officials who are monitoring British authorities told NBC News that preliminary reports indicate that a single explosion took place outside the arena on the southwest side opposite the train station. The explosion occurred as the concert ended, catching people as they exited.
U.S. officials said initial reports from the scene indicated that a number of the casualties might have been caused by a stampede of concert-goers.
New York City counterterrorism police said they were monitoring developments.