Law enforcement is responding to reports of an active shooter at a skyscraper in Midtown Manhattan Monday evening, according to sources. Multiple people were reportedly shot inside 345 Park Avenue, sources say.

The attacker reportedly drove cross-country from Las Vegas to New York in the days leading up to the shooting.

The shooting occurred in the lobby of 345 Park Avenue on East 52nd Street, an office building that records indicate is home to the NFL, Blackstone and KPMG.