Yayo, born Marvin Bernard, and other members affiliated with G-Unit Records have been detained by New York authorities for their connection to the assault of Jimmy "Henchmen" Rosemond's 14-year-old son.
Yayo was with an entourage that was returning from a brief trip to Africa when authorities apprehended them.
Sources weren't clear what charges, if any, have been levied on the men.
Representatives for Violator denied that 50 Cent was detained, but refused to comment on Yayo's arrest.
Yayo and others were taken to a precinct in downtown Manhattan to be identified by the teen, who will be accompanied by his mother.
The police also questioned the men as well for statements on the alleged assault.
The alleged assault happened on Tuesday (Mar. 20), as Rosemond's 14-year-old son left school on the way to an internship with his father's Czar Entertainment, an entertainment-based record label/management firm.
Czar Entertainment, located on West 25th street in New York, is in close proximity to Violator Management, the company that handles 50 Cent's career.
According to sources close to Czar, 50 Cent and Tony Yayo were leaving the offices of Violator Management and saw the boy walking down the street, wearing a Czar Entertainment T-shirt.
They were apparently unaware that the teen was Rosemond's son.
According to sources, Yayo backhanded the teen then screamed profane words towards Czar Entertainment.
Violator wasn't available for comment on the charges, but sources within the company denied that 50 Cent was present at the alleged assault. Counsel for Tony Yayo wasn't available at press time.
If found guilty, these charges could have an adverse impact on both 50 Cent and Tony Yayo.
Tony Yayo served two consecutive sentences after he was arrested in December of 2002 on a weapons-possession charges.
He was eventually sentenced for bail-jumping and wouldn't be released until early 2004.
50 Cent has been arrested a number of times in his formative years for selling illicit drugs, but currently has an album on deck tentatively called Before I Self Destruct.
The disputes with the two camps have several layers.
Jimmy "Henchmen" Rosemond and his Czar Entertainment manages The Game, one of the fiercest opponents of the G-Unit movement.
Furthermore, 50 Cent and Rosemond battled in court over The Infamous Times - Volume I: The Original 50 Cent , a DVD about the "original 50 Cent," a deceased criminal from Brooklyn, NY named Kelvin Martin.