Ariana Grande has called off two London concerts and five in Europe after a suicide bomber killed 22 people at her performance in Manchester, England, the U.S. pop singer¡¯s representatives said on Wednesday.

Monday¡¯s bombing, which killed 22 people and wounded 64, also resulted in the cancellation of next week¡¯s London premiere of the superhero film ¡°Wonder Woman¡± and increased security for a music festival this weekend featuring pop star Katy Perry in the northern English city of Hull.

Grande, 23, who tweeted earlier this week that she was ¡°broken¡± by the Manchester attack, had been due to perform on Thursday and Friday at London¡¯s O2 arena as part of her ¡°Dangerous Woman¡± tour.