A woman looks emotional as she looks at flowers left in St Ann Square on Tuesday, May 23, 2017 in Manchester,England. At least 22 people were killed in a suicide bombing at a pop concert packed with children in the northern English city of Manchester, in the worst terror incident on British soil since the London bombings of 2005.
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Manchester attack: How social media responded
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Incident at Ariana Grande concert in UK 17 videos
A woman looks emotional as she looks at flowers left in St Ann Square on Tuesday, May 23, 2017 in Manchester,England. At least 22 people were killed in a suicide bombing at a pop concert packed with children in the northern English city of Manchester, in the worst terror incident on British soil since the London bombings of 2005.
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Manchester attack: How social media responded
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MANCHESTER, ENGLAND - JUNE 04: NO SALES, free for editorial use. In this handout provided by 'One Love Manchester' benefit concert Ariana Grande performs on stage on June 4, 2017 in Manchester, England. Donate at www.redcross.org.uk/love (Photo by Getty Images/Dave Hogan for One Love Manchester)
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Pop star Ariana Grande visited a fan at the hospital who was injured in last month's terror attack at her Manchester concert.
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BEVERLY HILLS, CA - OCTOBER 13: In this handout photo provided by Jones Crow, Ariana Grande attends Tiffany & Co.'s unveiling of the newly renovated Beverly Hills store and debut of 2016 Tiffany masterpieces at Tiffany & Co. on October 13, 2016 in Beverly Hills, California. (Photo by Handout/Getty Images)
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BEVERLY HILLS, CA - OCTOBER 13: In this handout photo provided by Jones Crow, Ariana Grande attends Tiffany & Co.'s unveiling of the newly renovated Beverly Hills store and debut of 2016 Tiffany masterpieces at Tiffany & Co. on October 13, 2016 in Beverly Hills, California. (Photo by Handout/Getty Images)
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Stephen Jones described how he helped concertgoers who were wounded in Monday night's attack.
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MANCHESTER, ENGLAND - MAY 23: Members of the public gather at a candlelit vigil, to honour the victims of Monday evening's terror attack, at Albert Square on May 23, 2017 in Manchester, England. Monday's explosion occurred at Manchester Arena as concert goers were leaving the venue after Ariana Grande had just finished performing. Greater Manchester Police are treating the explosion as a terrorist attack and have confirmed 22 fatalities and 59 injured. (Photo by Leon Neal/Getty Images)
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Manchester Arena incident. Emergency services at Manchester Arena after reports of an explosion at the venue during an Ariana Grande gig. Picture date: Tuesday May 23, 2017. See PA story POLICE Explosion. Photo credit should read: Peter Byrne/PA Wire URN:31415965
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Olivia Campbell, 15, attended the Ariana Grande concert in Manchester with her friend on Monday, May 22, 2017 and died in the attack.
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MANCHESTER, ENGLAND - Police and fans close to the Manchester Arena on May 23, 2017 in Manchester, England. There have been reports of explosions at Manchester Arena where Ariana Grande had performed this evening. Greater Manchester Police have have confirmed there are fatalities and warned people to stay away from the area. (Photo by Dave Thompson/Getty Images)
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London CNN  — 

Celebrities took to Twitter to pay tribute and express their sympathy in the wake of a terror attack at an Ariana Grande concert in Manchester, England on Monday evening that left at least 22 people dead and dozens injured.

Grande herself responded on the social media site in the hours after the attack – writing that she was “broken” and didn’t “have words.”

Fellow singers including Katy Perry, Taylor Swift and Harry Styles were among those who tweeted their condolences.

“My heart hurts for my sister, Ariana & every family affected by this tragic event in the U.K.,” Nicki Minaj wrote. “Innocent lives lost. I’m so sorry to hear this”.

Liam Gallagher, the former Oasis singer who grew up in the city, wrote that the attack had left him “in total shock”.

Soccer stars Wayne Rooney, David Beckham and Cristiano Ronaldo, who have all played for Manchester United, also responded to the attack, with Beckham writing that he was saddened as a “father & a human”.