It seems as if 'most' communication has been shut down in Iran ..... .......on a twitter site .... they are saying that - well .. here it is ...........
6:14 update: Through Facebook we have received news that Mir Hossein Mousavi, Mehdi Karroubi, and Gholamhossein Karbaschi are under house arrest.
There is so much more information here - if you are interested ..........plus many more seem to have been arrested .............throughout the day ...