Iraqi authorities say a suicide bomber has blown himself up amid worshippers in a Shiite mosque in Baghdad, killing eleven people and wounding 25.

Police officials said that the Tuesday occurred during midday prayers.

A medic in a nearby hospital confirmed the casualties. All officials spoke on condition of anonymity because they are not authorized to speak to media.

Violence has risen recently in Iraq, along with sectarian and political tensions. Insurgents frequently attack Shiites deemed by Sunni extremists as infidels and non-Muslims.