Basra airport has been targeted by rocket fire after a night of protests over perceived misrule by Iraq's political elite during which demonstrators torched the Iranian consulate and briefly took oilfield workers hostage.
Iraqi security sources say three Katyusha rockets fired by unknown assailants hit the perimeter of the airport, although no damage or casualties have been reported. The US Consulate is adjacent to Basra's airport.
An official at the Iraqi airport said on Saturday there was no disruption to operations and flights were taking off and landing as normal.
The attack came shortly after a citywide curfew was lifted and hours after the reopening of Iraq's main seaport of Umm Qasr where protesters had blocked the port's entrance, forcing a halt to all operations.
Basra, Iraq's second biggest city located in the country's Shi'ite heartland, has been roiled by five days of deadly demonstrations, in which government buildings have been ransacked and set alight by protesters angry over political corruption.
Protests first erupted in July over poor government services, but intensified this week.
On Friday, protesters broke into the Iranian consulate's offices, shouting condemnation of what many perceive as Iran's sway over Iraq's political affairs and set it alight.
Iran and Iraq both strongly condemned the move, raising fears of possible retribution.
Iraqi Prime Minister Haider al-Abadi, who held an emergency cabinet meeting hours before parliament was due to convene an emergency session on Saturday, said he had ordered an investigation into the security forces "for not fulfilling their duties" in protecting government buildings and the Iranian consulate.
The unrest has thrust Iraq into a major crisis at a time when politicians still have yet to agree a new government after an inconclusive election in May.
The new parliament finally met for the first time on Monday but broke up after a day having failed to elect a speaker, much less name a new prime minister.
