Iranians started voting on Friday, June 28 for a new president following the death of Ebrahim Raisi in a helicopter crash, choosing from a group of four candidates loyal to the supreme leader, Reuters reports.

State television showed queues inside polling stations in several cities. More than 61 million Iranians are eligible to vote. Polls were due to close at 6 p.m. (1430 GMT), but are usually extended as late as midnight.

The election coincides with escalating regional tension due to war between Israel and Iranian allies Hamas in Gaza and Hezbollah in Lebanon, as well as increased Western pressure on Iran over its fast-advancing nuclear programme.

Voter turnout has plunged over the past four years, as a mostly youthful population chafes at political and social curbs.

Manual counting of ballots means it is expected to be two days before the final result is announced, though initial figures may come out around midday on Saturday.

If no candidate wins at least 50% plus one vote from all ballots cast, including blank votes, a run-off round between the top two candidates is held on the first Friday after the election result is declared.

Three candidates are hardliners and one is a low-profile comparative moderate, backed by the reformist faction that has largely been sidelined in Iran in recent years.