Amidst the ongoing allegations of Oksana Grigorieva against Mel Gibson, another woman has come forward claiming that the Hollywood actor had been "abusive" towards her.

"He called me up screaming and said he would make me suffer," Violet Kowal told Fox News.

According to Kowal, Gibson became angry when their three-month relationship became public last year.

"I was so scared of him. It was a huge emotional experience for me. I was close to going to the police but instead of that I went into hiding for a few weeks," she added.

The 26-year-old Polish fitness model said that she and Gibson first met in 2007 when he was married to his wife Robyn. However, she explained that their relationship began last year after his divorce and that she wasn't aware of Gibson's relationship with Grigorieva, with whom he had a baby daughter.

"He never talked about Oksana or the baby. It was like they weren't in his life," she said, adding that she last saw Gibson at Thanksgiving (November) last year.

Kowal claims that she has records of calls she received from Gibson's home and mobile phone numbers to prove the relationship. But the actor previously denied having a relationship with her. His representative even described the story as an "absurd fabrication".

Recently, Gibson has been accused of punching Grigorieva and hurting their baby during a drunken rage in January.

Tapes of alleged conversations between the former couple have also made their way to the Internet. In them, Gibson is heard verbally abusing Grigorieva with obscenities and racial outbursts.

For now, authencity of the tapes is needed and sources have said that Gibson denies striking Grigorieva.