Las Vegas Police have confirmed five people have died in a shooting which began earlier today in a pizza restaurant.
Two policeman were among the dead, a spokesman for the force confirmed.
The officers were believed to have been eating lunch when the shooters entered Cici Pizza before gunning them down, with one shouting: "This is a revolution".
The shooters then fled to scene to the local Walmart where they believed to have shot and killed one other person before turning the gun on themselves.
More top news
The boyfriend of the 25-year-old victim is in police custody following a manhunt in Arctic conditions of -30C.
Some dense fog is likely in the southeast, whilst brighter breaks are possible across eastern Scotland, northern England and north Wales.
When asked if he was joking or not, Mr Biden paused briefly before saying: "I’m not committing not to run. I’m not committed to anything."