Las Vegas police arrested a suspect after reports of a masked person carrying a gun prompted an evacuation Thursday night at the Boulevard shopping mall, a law enforcement official said.
A Metro official said no one has been injured and that there are no reports of shots fired by the suspect.
There's a massive police presence at the Boulevard Mall.
"Video was obtained showing a person with a long gun, wearing a mask", Las Vegas Metropolitan Police Deparment tweeted. "We've conducted 3 searches and are unable to locate the individual at this time".
In the meantime, everyone should avoid the area. "Police have not located this person and they are clearing the building to make sure the person is not hiding inside".
In October, a gunman opened fire on concertgoers Las Vegas, killing 58 people in the deadliest mass shooting in modern United States history. 13abc Action News reported that the mall has been evacuated.
Las Vegas police and fire departments did not immediately respond to calls from Fox News.