Brielle Biermann posted on social media that her family had been kicked off a plane by airline staff - and mother Kim Zolciak says: "police are now involved."

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Biermann, 22, claimed that a Delta employee forced her and her family members off the flight because Kim's husband, Kroy Biermann, was taking too long with the family's service animal.

"[He] just kicked my WHOLE FAMILY OFF the flight to ATL bc we were waiting on my dad with our service dog to finish going thru security," she wrote.

"KJ & kash started crying bc they thought we left him and Kaia was literally S–ING AND HE KICKED US OFF!!!!! WTF," she continued.

In a statement to US Weekly, Delta Airlines has refuted Brielle's claims:

"Mrs. Zolciak Biermann and family elected to deplane their flight after her husband remained behind to provide proper paperwork for an emotional support animal," the statement read.