Problems with the track layout in Beijing resulted in practice for this weekend's A1GP of China being curtailed after only three laps today.
The competitors found it almost impossible to negotiate the extremely tight hairpin which comes at the end of the track's high speed loop.
Ireland's John O'Hara was one of those to take part in the session, the Kildare driver managing to cope with the narrow exit.
Others were not so fortunate with several cars unable to make it through the turn.
A1GP organisers have decided to postpone on-track activity while they undertake further investigations on the turn and are currently working to resolve the situation.
