British Prime Minister Theresa May had the difficult task of addressing her people on Tuesday, after a terrorist attack killed 22 people and wounded an additional 59 at an Ariana Grande concert in Manchester the previous night.

May told the assembled media outside 10 Downing Street that the attack was carried out by “a single terrorist” who specifically chose Manchester Arena “to cause maximum carnage, to kill and injure indiscriminately.” She called it a “callous terrorist attack” and condemned the attacker for targeting children.

“We know that among those killed and injured were many children and young people,“ she said. "We struggle to comprehend the warped and twisted mind that sees a room packed with young children not as a scene to cherish, but as an opportunity for carnage.”

May also revealed that authorities know the identity of the perpetrator, but said that it’s still too early in the investigation to disclose that information, as police and intelligence services try and determine whether or not he acted alone. What we do know is that ISIS has since claimed responsibility for the attack.

World leaders were quick to condemn the attack and offer their condolences to the British people. U.S. President Donald Trump called those responsible “evil losers in life,” and said that he “won’t call them monsters because they would like that term.”

The French Prime Minister, Edouard Philippe, invoked the 2015 terrorist attack at the Bataclan music venue in Paris. “The most cowardly form of terrorism has struck once again, targeting - as in Paris more than a year ago - a concert venue,“ he said.

Campaigning for Britain’s June 8th general election has been suspended for now.