DUBAI - Iranian authorities have eased restrictions on detained opposition cleric Mehdi Karroubi, who helped lead big anti-government protests in 2009 and was put under house arrest two years later, his son said on Sunday.

Karroubi, a defeated candidate in disputed presidential elections in 2009, was moved from detention at a location in Tehran to his home in the capital's northern Jamaran area, his son, Mohammad Hussein Karroubi, said on his Facebook page.

Opposition sources have said Karroubi had been held at a apartment in northern Tehran operated by the security services. There has been no official comment on those reports.

The transfer relaxes curbs imposed for what critics saw as his seditious role, along with fellow prominent reformist Mirhossein Mousavi, in post-election protests in 2009.

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