Tory Lanez Allegedly Attacks 'Love & Hip Hop' Star Prince at Miami Club

Tory Lanez packs a serious punch ... at least according to a 'Love & Hip Hop' cast member who told cops he needed medical attention after the rapper socked him in the face, but Tory's denying it.

Prince Michael Harty, a rapper/promoter who's on "L&HH: Miami," claims Tory reignited their longstanding beef this month at club Vendome on South Beach. According to the police report, obtained by TMZ, Prince told cops he was at his table around 4 AM last Monday when he was approached and struck on the left side of his face.

Prince told cops he turned around and made eye contact with Tory, who ran out of the club and took off in a Mercedes-Benz Sprinter van. Tory is named in the police report as a suspect for an alleged battery.

According to the report, Prince also told cops he went for medical treatment and the responding officer said Prince had a visibly swollen area on his left cheek.

A rep for Prince tells TMZ ... he was hanging out with NFL star Malcolm Butler, when he noticed some guys staring at them.

We're told the DJs and hosts made it well known Prince and Malcolm were in the building, and when Butler left Prince alone in their section, Tory came up with his entourage and allegedly threw the punch, leaving Prince with a massive headache and a swollen mouth.

A rep for Tory tells TMZ ... Lanez was nowhere near Prince at the time he alleges and the guy's "obsessed" with Tory. Even further, the rep says there are no witnesses or footage to back up Prince's claim -- 'cause, again, Tory says it didn't happen ...