THE Boulevard Mall in Las Vegas has been locked down as dozens of police vehicles converge amid unconfirmed reports of an ‘active shooter’.

The shopping complex, on on Maryland Parkway, is surrounded by police and supporting ambulance and fire services.

Initial reports suggest the police response came after shoppers called 911 after seeing a man walking through the hallways with a rifle.

the scene outside Boulevard Mall right now pic.twitter.com/nmfewIVaXV — Bear Trills™ (@bigbadOSO) May 18, 2018

BREAKING: Huge Metro situation at Boulevard Mall on Maryland Parkway. Dozens of units, County fire on scene. Armed officers at the Sears entrance. No details confirmed. @FOX5Vegas pic.twitter.com/CNfjZiog9J — Kristen DeSilva (@kristendesilva) May 18, 2018

The Las Vegas Metropolitan Police Department has tweeted that no shots have been confirmed, and no injuries reported. Investigations are ongoing.

Armed officers have been seen gathering at the entrance to a Sears store.

Local media is reporting nearby streets, including Maryland and Sierra Vista, are being blocked by police. All entrances to the mall are being closed.

BREAKING: massive police presence at the Boulevard Mall. No official word from police but several dozen police cars pic.twitter.com/2f8jeq4u34 — Mike Shoro (@mike_shoro) May 18, 2018

Eyewitnesses say the police also appear to be converging on the the parking station at the Twain, Maryland Parkway intersection. Helicopters are circling the scene.

The situation remains tense as dusk falls over the Nevada casino resort city.

Tough to see but many, many Metro and fire units on the south end of the lot at Twain near SeaQuest Aquarium. We still have few details. Follow @FOX5Vegas for the latest updates. pic.twitter.com/J3QX42nXOa — Kristen DeSilva (@kristendesilva) May 18, 2018

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