Websites linked to Iranian opposition groups have posted calls for nationwide rallies on Sunday to mourn the deaths of two people killed in an anti-government protest in Tehran this week.
"We invite the noble Iranian nation to attend gatherings in Tehran and other cities on Sunday ... at 3:00 pm (1130 GMT) to commemorate the seventh day of martyrdom of the beloved," the Council for Coordination of the Green Movement Hope said in a statement on Kaleme.com, website of main opposition leader Mir Hossein Mousavi.
The same statement was also posted on another website Rahesabz.net.
The council was one of the opposition-linked entities that had called for a rally in Tehran on Monday in support of Arab uprisings, which turned into an anti-government protest that ended in deadly clashes with security forces.
In its Thursday statement, it said the Sunday rallies were intended to show "decisive support" to the stance taken by Mousavi and fellow opposition leader Mehdi Karroubi in "continuing on the difficult path of freedom and human dignity."
It will "also show solidarity with our Kurdish countrymen in honoring the blood of these two dear Sunni and Shiite Iranians which was spilled while fighting religious tyranny."
Sane'e Zhale, a Sunni Kurd, and Mohammad Mokhtari, a Shiite, were killed in Monday's protest but controversy surrounds their deaths.
Iran's regime-backers claim Zhale was member of the student wing of the Basij militia, while the opposition groups say he was one of them.
Regime backers say Mokhtari was killed by the outlawed People's Mujahedeen of Iran. Opposition groups say Mokhtari was also one of them and was shot dead by plain-clothes men on motorbikes.