Police in Las Vegas say they're investigating reports of an active gunman on the city's main strip.
They've been called to an area near the Mandalay Bay casino hotel.
Police have confirmed it on Twitter.
We're investigating reports of an active shooter near/around Mandalay Bay Casino. Asking everyone to please avoid the area. #LVMPDnews
— LVMPD (@LVMPD) October 2, 2017
People near the area have been sharing what they saw.
Active shooter Las Vegas strip I'm ok locked in my room lights off windows closed. Shooter is directly across the street. Shots heard on vid pic.twitter.com/Z4mz3E3bmE
— Bryan Heifner (@HBryanBHHS) October 2, 2017
IF ANYONE IS OUT ON THE LAS VEGAS STRIP PLEASE EVACUATE RIGHT NOW THERE IS A MASS SHOOTING AT MANDALAY BAY SO FAR 20 DEAD PLEASE LEAVE
— amarachi adiele (@amarahotty) October 2, 2017
Police blocking Las Vegas Blvd at a Tropicana pic.twitter.com/YNV5nAifgQ
— Chase Stevens (@CSStevensphoto) October 2, 2017
More to follow.