After a weekend of anti-government demonstrations during a Shi’ite Muslim festival in Iran, leading opposition figures have been arrested.
It is reported that three advisers to opposition leader Mirhossein Mousavi have been arrested, along with seven other pro-reform politicians.
Iranian officials say at least eight people were killed in the clashes that broke out and more than 60 were wounded.
It is also reported that a nephew of Mousavi was among the victims.
Foreign media have been banned from directly reporting on demonstrations in Iran, making it difficult to verify information. People are still managing to post amateur film on websites, however.
Iran has been rocked by political instability since the re-election of President Mahmoud Ahmadinejad in a vote comdemned by opponents as fraudulent.
Further opposition demonstrations are reported to have been broken up on Monday, but a rally by people waving pictures of the Supreme leader did go ahead.