CBS says it's investigating a sexual harassment allegation against Jeremy Piven, the latest Hollywood figure caught up in a widening circle after dozens of women alleged they were sexually harassed or assaulted by Harvey Weinstein.
Actress and reality star Ariane Bellamar claimed in posts on her Twitter account Monday that the Emmy-winning "Entourage" star groped her on two occasions.
Bellamar alleged that one encounter took place in Piven's trailer on the "Entourage" set and the other occurred at the Playboy Mansion.
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CBS, which airs Piven's new series, "Wisdom of the Crowd," says in a statement that "we are aware of the media reports and are looking into the matter."
"I unequivocally deny the appalling allegations being peddled about me. It did not happen," Piven told NBC News. "It takes a great deal of courage for victims to come forward with their histories, and my hope is that the allegations about me that didn't happen, do not detract from stories that should be heard."
In a Monday interview with The Associated Press, Piven said he was glad people had come forward with allegations against Harvey Weinstein and that he had never been in that situation.
HBO, which aired the 2004-11 series, said in a statement that it was unaware of Bellamar's allegations until they were reported by media.
"Everyone at HBO and our productions is aware that zero tolerance for sexual harassment is our policy. Anyone experiencing an unsafe working environment has several avenues for making complaints that we take very seriously," the channel said.
Bellamar's credits include "Suicide Squad" and "The Hangover Part III" and the reality series "Beverly Hills Nannies."