Iranian opposition leaders Mir Hossein Mousavi and Mehdi Karroubi have been arrested along with their wives and jailed at Tehran's Heshmatiyeh prison, their websites reported on Monday.
The two had been under house arrest after judiciary chief Ayatollah Sadeq Larijani said earlier this month they had committed "treason" and MPs demanded they be hanged.
Iranian authorities had put Karroubi and Mousavi and their wives under "complete" house arrest after their supporters staged anti-government protests on February 14, their websites had said in previous reports.
News of their reported arrests came after prosecutor general Gholam Hossein Mohseni Ejeie in statements earlier Monday warned the opposition movement against plans to hold protests on Tuesday.
