Sir Stephen Fry is suing the organisers of a tech conference where he fell off the stage for $100,000 in damages.

The 68-year-old broadcaster was giving the keynote speech at the CogX convention at London's O2 Arena in September 2023 when he took a tumble, breaking his leg, hip, pelvis and a "bunch of ribs" and he has now taken legal action against CogX Festival Ltd and Blonstein Events Ltd.

Court documents obtained by the BBC stated: "The Claimant brings a claim for damages for personal injuries sustained on 14 September 2023 at the O2 Arena, London, whilst attending the CogX Festival where he had been engaged to deliver a talk on Artificial Intelligence.

"After concluding his presentation and whilst exiting the stage backstage area, the Claimant fell approximately two metres from the stage to the concrete floor below.

"The incident was caused by the negligence and/or breach of statutory duty of the Defendants, its servants or agents, in failing to ensure that the stage and backstage area were safe, adequately lit and properly protected to prevent a fall from height."

His lawyer, Keith Barrett, added: "It's very unfortunate that court proceedings were necessary, but the Defendants do not accept Sir Stephen's account of events, and we have had to ask the court to determine who is responsible for his injury and losses."

A spokesperson for CogX Festival Ltd said they had been "deeply concerned" when Stephen had his accident, but were unable to comment on the legal proceedings.

The representative said: "We are unable to comment while the legal process is ongoing, but we were all deeply concerned when Stephen had the accident after giving his incredible speech on the Impact of AI, and we continue to send him our best wishes for a full recovery."

Blonstein Events Ltd director Sara Blonstein said her firm had yet to be formally notified about the lawsuit.

She told BBC News: "No court proceedings have been served by Sir Stephen Fry, nor those representing him.

"If court proceedings are served both we and our insurers are confident that our defence will be successful as we were in no way responsible for this incident."

Stephen previously admitted he became "afraid" of making basic movements following the incident.

He told BBC Radio 4's Today programme: "You almost call [the pain] a friend and say 'It's OK, I know why you're there' and you're not a failure on the part of evolution, or God, or whatever you want to call nature."

The veteran actor discussed his health troubles with Professor Irene Tracey, the vice-chancellor of the University of Oxford, who has dedicated her career to exploring the treatment of pain.

He asked her: "Are we wrong to believe that it's rather British to think that pain is something that should be endured?"

Stephen also observed that people sometimes believe "we should suffer if we have this injury, that it is the natural course".

The former Q.I. host previously acknowledged that he was "very fortunate" to still be able to walk.

Stephen said on Good Morning Britain: "It was pretty nasty. I broke my leg in two places, my pelvis in four places and a bunch of ribs, so it was really quite serious.

"I was giving this lecture. When I finished I took my bow and walked off stage not knowing that the bulk of the stage I was walking on had a six-foot drop onto concrete. It was grim.

"The orthopedic surgeon made it clear that he was dealing with people who had had a fall from lesser heights, who might not walk again.

"The two things that you don't want to hit are your skull or your spine. And I was very fortunate that I didn't, so there was no suggestion of either cognitive impairment."