Jeremy Clarkson has been let go by the BBC for what is being called an "unprovoked physical attack" on a Top Gear producer, the network has confirmed.
BBC general director Tony Hall said he had "not taken this decision lightly" and recognized that the decision not to bring back Clarkson will "divide opinion."
However, Hall added "a line has been crossed" and he "cannot condone" what happened that resulted in Clarkson getting suspended this month.
A "fracas" with Top Gear producer Oisin Tymon took place in a Yorkshire hotel, supposedly because no hot food was provided for the day's filming.
An internal investigation began last week, led by Ken MacQuarrie, the director of BBC Scotland, into the "unprovoked physical and verbal attack".
"During the physical attack Oisin Tymon was struck, resulting in swelling and bleeding to his lip," he said, and the melee lasted "around 30 seconds."
It was eventually "halted by the intervention of a witness," MacQuarrie noted in his report, though "the verbal abuse was sustained over a longer period."
Jeremy Clarkson's rant "contained the strongest expletives and threats to sack" Tymon, who did not file a formal complaint following the altercation.
Reports say Clarkson revealed what happened personally to BBC bosses, and director of TV Danny Cohen felt he had no choice but to suspend him.
Top Gear fans - more than a million strong - have since signed an online petition to reinstate him, but Hall said Clarkson's dismissal was unavoidable.
"There cannot be one rule for one and one rule for another dictated by either rank, or public relations and commercial considerations," he stated.
He praised the "extraordinary contribution Jeremy Clarkson has made to the BBC ... I have always personally been a great fan of his work and Top Gear."
Tymon thanked the BBC for a "thorough and swift investigation into this very regrettable incident, noting "I've worked on Top Gear for almost a decade."
"Over that time Jeremy and I had a positive and successful working relationship, making some landmark projects together."
"He is a unique talent and I am well aware that many will be sorry his involvement in the show should end in this way."