Shootings in Lewiston, Maine

What we know about the shootings in Lewiston, Maine:
At least 22 people have been killed, a Lewiston police source said.
Fifty to 60 were wounded at several locations, including a local bowling alley, law enforcement officials said.
A local medical center said it was responding to a "mass casualty" event.
Officials have urged residents in Lewiston and Auburn to shelter in place.
The Androscoggin County Sheriff's Office released photos of a man with a rifle with the caption "suspect for identification."
Lewiston police said a "manhunt" is underway for a person allegedly connected to shootings.
Lewiston is a city of around 37,000 almost 30 miles north of Portland.