
The Iranian capital Tehran has seen another day of rallies and protests, as tensions build over last week's disputed presidential election.Supporters defeated pro-reform candidate Mir Hossein Mousavi have held a big rally in northern Tehran, according to witnesses.The protest came hours after Mr Mousavi urged them not to march in the centre of the city where President Mahmoud Ahmadinejad's supporters gathered.Heavy restrictions have now been placed on the BBC and other foreign news organisations. Reporters are not allowed to cover unauthorised gatherings or move around freely in Tehran, but there are no controls over what they can say. Jon Leyne reports from Tehran.
