Trey Songz is the subject of a sexual assault investigation in Las Vegas.

Law enforcement sources tell us the Las Vegas Metropolitan Police Department is currently looking into claims of a sexual assault incident at The Cosmopolitan. It’s unclear what day the alleged assault happened, but we’re told the report was made to the police on Sunday.

Our sources say at this time, Trey is cooperating with the investigation … no arrests have been made.

Trey Songz Birthday Celebration At Drai's

As for why he was in town, Trey celebrated his 37th birthday at Drai’s Nightclub Saturday night.

We’ve reached out to a rep for Trey, so far … no word back. Is the most visited news, Trending Topics and current affairs website. All rights reserved to Maria Memon Media Group for all content published on this website.