News Snapshot:
At least 22 people are said to have been killed after a shooting in the US state of Maine, with the suspect - a firearms instructor - still at large. Authorities in Lewiston are investigating "two active shooter events" and warned people to stay inside with doors locked. A police source told NBC News at least 22 people are dead and as many as 50-60 injured - which would make it the deadliest shooting in the US this year. Police released images of a man with a rifle in a bowling alley and said they were looking for "armed and...