(CNN)At least 19 people are dead and about 50 injured in a possible terrorist incident Monday at Manchester Arena in England, where pop singer Ariana Grande was performing, Greater Manchester Police said.
"This is currently being treated as a terrorist incident until police know otherwise," Manchester police said on Twitter.
"We can confirm there was an incident as people were leaving the Ariana Grande show last night. The incident took place outside the venue in a public space. Our thoughts and prayers go out to the victims," police said on Twitter.
Country stars took to Twitter when the news broke. (WARNING: some warranted language)
Concerts are supposed to be a safe space. A celebration of music. A chance to experience your favorite artist in a setting greater and more personal than through a pair of headphones. For some scumbag to ruin that sense of security for so many fans is beyond disgusting. Manchester, I am heartbroken, angered and have so many other emotions running through me. Such a senseless act of terrorism.
To all those affected, I am so very sorry and feel for you deeply.
Do not let fear win.
@TraceInTheTruck
@TraceAHamilton