Militants fire rockets at Baghdad green zone as rival Shia groups clash

Death toll rises amid unrest after announcement of Muqtada al-Sadr's resignation from politics

Militants have fired rockets at Baghdad's fortified green zone and sporadic clashes between Shia groups have taken place in the city, following a night of violence in which up to 20 people were killed and more than 300 wounded.

Iran closed its border and urged its citizens to leave Iraq as gunmen roamed the streets of the capital, amid efforts by pro-Iranian factions and those loyal to Iraqi cleric Moqtada al-Sadr to ease tensions that had spilled over in response to Sadr's decision to exit politics.