"Armed men came last night and detained the head of Baghdad provincial council Riyadh al-Adhadh and four of his guards from his house in Adhamiyah," a police colonel told AFP.
It was not immediately clear whether the politician had been officially arrested by the authorities but the armed men who took him came in 10 large SUVs and wore military uniforms.
Adhadh, a doctor by training, is a member of Mutahidoon. He spent most of 2012 in prison on charges of funding insurgent groups.
He survived a bomb attack on his convoy that killed one of his bodyguards in September 2013.
A number of top Iraqi politicians have been accused by the government of having links with armed insurgent groups.
NGD/SHI