The fallout from Jeremy Clarkson’s acrimonious departure from Top Gear rumbles on as show producer Oisin Tymon — whom Clarkson assaulted during a break from filming — has sued Clarkson and the BBC for racial discrimination. In addition to the physical attack Clarkson launched on Tymon, allegedly over a disagreement over catering, Tymon is alleging he was the victim of a verbal tirade that included derogatory remarks about his Irish nationality.

Tymon, represented by legal firm Slater And Gordon, attended an employment tribunal on Friday along with lawyers for the BBC and Clarkson. It is believed the allegations of racial discrimination could significantly increase any compensation claim due Tymon following the incident. An internal BBC inquiry in March found that Clarkson had instigated “an unprovoked verbal and physical attack” on Tymon, and publicly cleared Tymon of wrongdoing.

A statement from the BBC today said: “We will be responding to this claim but will not be commenting further at this time.”

The “fracas,” as Clarkson has described it in his newspaper column, led to the opinionated presenter leaving the BBC, along with co-hosts James May and Richard Hammond, and signing a deal with Amazon Prime to relaunch their show. The BBC is also moving on with Top Gear, having brought presenter and DJ Chris Evans onboard to lead the show.