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. 2 V7 p0 u0 {" |0 L( [5 Q. i7 x
- o+ ?0 d! t$ m% q9 c. sThey say they are treating it as a "terrorist incident" as they investigate.