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. 4 I; w2 z7 s/ u3 D+ t8 y
# p% }. e: x& m! k5 c" lThey say they are treating it as a "terrorist incident" as they investigate.