What we know so far
Matthew Weaver

- At least 50 people have been killed and more than 400 injured at a country music festival in Las Vegas, in the worst mass shooting in US history. Two police officers, including one who was an off-duty member of the Las Vegas police department, are among the dead.

- The shooter was named by police as Stephen Paddock, 64. Police say they believe he killed himself before officers raided his his room on the 32nd floor of the Mandalay Bay hotel, from where he fired multiple rounds at concertgoers at the Route 91 harvest country music festival.

- Police found at least 10 guns in Paddock’s room. He had been staying in the room since 28 September.

- Paddock was described as a “lone wolf” with no known links to terrorist groups. His motives are unknown and he had no police record. A spokesman for the US Department of Homeland Security says there is no information to indicate a “specific credible threat” to other public venues.

- Police have found Paddock’s “companion”, Marilou Danley. They said she was out of the country and has been questioned by the police.

- Paddock’s house in Mesquite, Nevada is being searched. His two vehicles have been found. Public records listed previous addresses for Paddock in Texas and California, as well as a 2010 licence to hunt and fish in Alaska.

- Donald Trump tweeted his condolences and sympathies. His planned trip to hurricane-hit Puerto Rico has been delayed.

- Jason Aldean, the country music star who was performing as the shooting took place, described the scene as “beyond horrific”. He said he and his crew were safe, but added: “It hurts my heart that this would happen to anyone who was just coming out to enjoy what should have been a fun night.”

- Concertgoers reported seeing muzzle flashes from the upper floors of the Mandalay Bay hotel and several videos of the aftermath show hundreds of people fleeing in panic as shots continued. Around 22,000 people were attending the concert when Paddock opened fire.

- Some flights have resumed at the city’s McCarran international airport after all planes were temporarily grounded on Sunday evening.

Updated at 2.26pm BST