Details on the accident are scarce, likely due to the remote nature of the location and the semi-secret nature of The Grand Tour's production. Grand Tour Nation says that Hammond was "traveling quite fast when he came off" the motorcycle. No word on whether he was wearing a helmet, though we'd be surprised if he wasn't given the previous incident. His 2006 accident left him in critical condition in the hospital with brain damage. The dragster he was driving for Top Gear flipped at around 288 mph.
On Drive Tribe, Hammond said the details of the accident will come out later this year as part of the show. It's unclear if this will cause any delay in filming. Although the trio of Richard Hammond, Jeremy Clarkson, and James May initially avoided discussing Hammond's first accident on Top Gear, footage and details were eventually shown to the public.