Police were called to the set of VH1’s Basketball Wives on Saturday in Los Angeles and were forced to detain one cast member, Breaking Celebrity News has learned exclusively.

The high drama went down during the live-to-tape recording of the reunion special at Occidental Studios.

According to an on-set source, Suzie Ketcham -- the ex-girlfriend of NBA star Michael Olowokondi -- was arrested after an ugly on-camera confrontation.

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"The show was taping and then the cast was told, 'We have a surprise guest,” the source told Breaking Celebrity News.

That special guest was “Sandra” -- the infamous “groupie” who had a drink thrown in her face during a fight with Ketcham on an episode of the premiere season.

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“Suzie got really p----- off and just got up and left, but not soon after, she came back with a huge bucket of water and threw it at Sandra.”

That’s when it turned ugly.

“Sandra tried to run away, but in the process, she slipped in the water and fell,” recounted the insider.

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“The whole audience gasped.”

With Sandra seriously hurt, production staff called paramedics who responded not soon after.

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She was treated in front of the studio audience.

“As she was being taken off set, the first words out of her mouth were, "Call my lawyer”,” said the source.

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Police were also called and responding officers arrested Ketcham and took her into custody for questioning.

It’s understood Sandra -- whose condition is unknown -- wants charges laid against the mother of two.

“We responded to a reported assault at approximately 5.30pm PT,” the Los Angeles Fire Department confirmed to Breaking Celebrity News.

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“We dispatched one of our fire engines and a rescue ambulance to the scene.. and a person of unknown condition was taken to an area hospital.”