The pop world also rallied with Katy Perry tweeting: "Praying for everyone at Ariana Grande&China SMC Mould Manufacturers39;s show"."We are working with our foreign counterparts to obtain additional information about the cause of the reported explosion as well as the extent of injuries and fatalities," the department said in a statement. It was sheer panic," he said.At least two parents waiting for their children outside were injured by the explosion, with one saying he had been hit by shrapnel in his leg and another feeling "heat on my neck".Grande, who was due to give a concert in London later on Tuesday, said she was "broken" in a tweet. We're just lucky to have gotten away safely," she said. "Broken.Isabel Hodgins, an actress who had been attending the concert, told Sky News: "Everybody was panicking, there was pushing up the stairs."All our thoughts are with the victims and the families of those who have been affected," said May, who was due to chair an emergency ministerial meeting # later on Tuesday at around 0800 GMT.”

"I was actually having an asthma attack.Greater Manchester Police chief Ian Hopkins told reporters that investigators were "working closely with the national counter-terrorism policing network and UK intelligence partners".Gary Walker from Leeds told BBC Radio 5 Live he was hit by shrapnel in his foot and his wife sustained a stomach wound as they waited for their daughters. This is currently being treated as a terrorist incident until police know otherwise," police said in a statement. Train services to and from Manchester Victoria Station -- located under the Arena -- had been cancelled.In Manchester, residents tweeted with the hashtag #RoomforManchester to offer a place to stay and there were reports of taxis taking passengers for free."Our thoughts are with all those killed and injured tonight and our brave emergency services," he said.Police were called to the scene at 2133 GMT."So far 22 people have been confirmed dead, with 59 others injured.Calvin Welsford, 18, from Bristol told the BBC: "It almost sounded like a gunshot".

"The attacker died detonating the device," police said. From the bottom of my heart, I am so so sorry.Manchester: 22 people have been killed in a suspected terrorist attack during a pop concert by US star Ariana Grande in the north-west English city of Manchester, police said on Tuesday. Manchester Arena said the blast "took place outside the venue in a public space", while police said it was "within the foyer area of the stadium".There was panic as Grande's audience of youthful fans fled the 21,000-capacity venue late on Monday after what eyewitnesses described as an explosion in the foyer area at the end of the concert.”

"It's just shocking and we just feel very shaken up. The corridor was full, it smelled of burning, there was quite a lot of smoke as we were leaving.A few hours after the blast, police carried out a controlled explosion in a small park near the venue but said the item turned out to be only abandoned clothes.

The foyer connects the auditorium with Victoria train and tram station, a major transport hub on the northern edge of the city centre.Ambulances and bomb disposal teams rushed to the venue, as worried family members searched for their loved ones and residents opened their doors to stranded concert-goers after trains were cancelled.Majid Khan, 22, who was attending the concert with his sister, said: "A huge bomb-like bang went off that hugely panicked everyone and we were all trying to flee the arena". I looked around and people were just spilling down, heading out of the building. end-of Tags: manchester attack, manchester blast, uk pop concert attack Location: United Kingdom, England, Manchester Related StoriesManchester attack: Local Gurudwaras offer shelter to blast victims, stranded survivorsChronology of terror attacks on Britain since 2003.Tributes poured in for Manchester from around the world including from London mayor Sadiq Khan, whose city was struck by a terror attack just two months ago.

I don't have words," she wrote.Concerned relatives used the hashtag #MissinginManchester to locate loved ones."We heard the last song go and then suddenly there was a massive flash and then a bang and smoke," he said.British Prime Minister Theresa May condemned the "appalling terrorist attack" and suspended her campaign ahead of a general election on June 8."We stand ready to assist our friends and allies in the UK in all ways necessary as they investigate and recover from this incident," it said."Disruption is expected to continue until the end of the day," National Rail said in a statement.The US Department of Homeland Security, Britain's biggest intelligence partner, said it was "closely monitoring" the situation.US pop princess Taylor Swift, a friend of Grande, wrote: "My thoughts, prayers and tears for all those affected by the Manchester tragedy tonight"