Police say that 19 people have been killed and another 50 injured after an explosion at the Manchester Arena in northern England, where U.S. pop star Ariana Grande was giving a concert. 8 {. Y% X! K% a' `. i( h$ v2 @: _
! k3 i" s+ {0 Q. A
They say they are treating it as a "terrorist incident" as they investigate.