Police in Las Vegas are telling people to stay indoors after an active shooter shot up a concert and is on the loose.
Reports are emerging that at least some 20 bodies have been found inside one location of the shooting scene.
The Mandalay Casino is said to be on lockdown, with some reports claiming that there are two shooters on the 32nd floor of the hotel who had shot at a bodyguard and police.
Others say a black Audi car is speeding around with wires hanging out that look like a bomb.
This story is developing.