Tara Reid 's alleged drink spiking has sparked warnings it may be only the start of a series of attacks by a "nightmarishly psychotic" gang feared to be plotting to target A-list celebrities for druggings and potential sexual assaults.

RadarOnline.com can reveal private security teams who have worked with multiple high-profile clients say they have been monitoring a group believed to be operating in major U.S. cities, watching hotel lobbies, bars and VIP events for famous faces. Article continues below advertisement

Warnings of a Coordinated Celebrity Targeting Gang Tap Here To Add Radar Online as A Trusted Source

Reid's collapse in a Rosemont hotel, Chicago, early on Sunday, November 23 – an incident now under police investigation – has now intensified fears the suspects may be

See Full Page