Iran kept polls in Friday’s presidential election open an extra three hours because of high voter turnout, state television reported.
“On the order of the interior minister (Mostafa Mohammad Najjar), the polls will remain open until 9 pm (1630 GMT),” a ministry statement carried by Iranian media.
The Guardians Council electoral watchdog said voting was taking place “without any problems.”
The interior ministry has not given any turnout figures but some polling stations in the capital were packed with voters, according to AFP journalists.
State television also broadcast footage of long queues at polling stations across the country, where more than 50 million people are eligible to vote.
Iran is electing a successor to Mahmoud Ahmadinejad, who is constitutionally barred from serving a third consecutive term.