Tuesday's episode of "The Real Housewives of Beverly Hills" proved to be an explosive one as two of the show's stars, Lisa Rinna and Kim Richards, battled it out over dinner during the cast's vacation to Amsterdam.

Claiming the she had dirt on Lisa's husband, actor Harry Hamlin, 50-year-old Kim threatened Lisa that she would expose her husband's secret. Lisa was furious and lunged at Kim across the table trying to grab her throat, yelling, "Don't touch my husband! Never go after my f**king husband!" Lisa then proceeded to throw her wine glass at her co-star.

Housewife Yolanda Foster was shocked, feeling like she was part of the cause of this outburst because she suggested that the ladies should open up and talk about their feelings. She said, "I think sometimes we try to hide all these things from each other to pretend we're all perfect."

Kim's sister Kyle Richards, who was present at the fight, ran out of the restaurant. She later told US Weekly that "All hell broke loose" and that "It was a nightmare."

The feud between Lisa and Kim began on the Jan. 20 episode when Kim was acting like she was drunk at Housewife Eileen Davidson's poker party when Kim was supposed to be sober for three years. According to a source, Kim was trying to get some leverage on Lisa when Lisa had questioned her sobriety during that episode.

The show has finished filming the season and sources say that the bad blood between Lisa and Kim is not over. The source said, "Since Amsterdam, those two really hate each other." Apparently the two will have another fight during one of the last episodes of the season and a heated fight during the reunion episode.

"RHOBH" airs on Tuesdays at 9:00 pm on Bravo.