A suicide bomber hit an Interior Ministry building in central Baghdad on Saturday, killing at least 11 people, as an investigation was underway into a deadly attack on a Sunni mosque that has heightened sectarian tension amid a fragile political transition.
The suicide bomber drove an explosives-laden car into the gate of the intelligence headquarters in Karrada district in the early afternoon, killing six civilians and five security personnel, a police officer said. He said 24 other people were wounded.
A medical official confirmed causality figures. Both officials spoke on condition of anonymity as they were not authorized to brief the media.
The attacks came hours after parliament speaker Salim al-Jabouri said that a committee of security officials and lawmakers were probing Friday's attack against a village mosque in Diyala province, which killed more than 60 people. The results of the investigation are expected in two days' time.
It remained unclear whether the attack in the village of Imam Wais was carried out by Shiite militiamen or insurgents from the Islamic State group who have been advancing into mixed Sunni-Shiite areas in Diyala and have been known to kill fellow Sunni Muslims who refuse to submit to their harsh interpretation of Islamic law.
Since early this year, Iraq has faced an onslaught by the Islamic State extremist group and allied Sunni militants, who have seized large areas in the country's west and north. The group took over Iraq's second-largest city Mosul in June, and has since declared an Islamic state, or caliphate, in territory under its control in both Iraq and neighbouring Syria.