The bomb explosion at Ariana Grande's concert inside the Manchester Arena shocked the world and caused a lot of concern for the numerous victims of the attack. The attack, which took place Monday night, right outside the arena within the public foyer at 10:30 pm local time, caused a massive panic during the event. The explosion has been confirmed to have killed at least 19 people and injured 50 others.

The singer's reaction

The 23-year old singer, who was fortunately not hurt in the blast, took to Twitter and joined other celebrities and politicians to express her horror at the attack.

Grande mentioned that she was "broken" and that she was "so so sorry" for what happened. The singer likely felt a little bit responsible for what happened, even though she was in no way at fault. Grande has officially canceled her world tour, which would have included a performance in London at the O2 Arena later this week.

Latest incident update

As of the moment, investigators at the scene are treating the incident as a Terrorist Attack until it is proven otherwise. Shortly after the attack, 60 ambulances were dispatched to the area. Most of the injured victims were immediately rushed to six different hospitals, while other "walking wounded" were treated on site.

Authorities have yet to identify the perpetrators and no arrests have yet been made. Investigators are still trying to determine the identity of the attackers and the motives behind it. Prime Minister Theresa May has called for an emergency "Cobra" meeting today to assess the situation and to discuss their plan of action. The area around the blast site has been blocked off and train services have been canceled until further notice.

World's reaction

Thousands of fans and concerns citizens immediately went on to social media to express their reactions to the attack. Some Manchester residents also started to post pictures of their loved ones to find out if they were hurt during the blast. One mother posted a photo of her teenage daughter, begging for people to contact her if they hear anything about her daughter's whereabouts.

Aside from Grande, several celebrities also went on social media to extend their prayers to the victims. Nicki Minaj, who works closely with Grande, posted that she was hurt when she heard about the incident. Taylor Swift also extended her "prayers and tears" for the victims. Bruno Mars, on the other hand, mentioned that he just doesn't want to believe that "the world we live in could be so cruel."