TEHRAN, July 5 (Reuters) - Three sons of slain Iranian leader Ayatollah Ali Khamenei prayed beside his coffin and those of four other family members on Sunday, but Mojtaba, the son who has succeeded him as Iran's supreme leader, did not make an appearance.State TV showed Mostafa, Meysam and Masoud Khamenei praying behind the coffins laid out in the vast courtyard of Tehran's Imam Khomeini Grand Mosalla, a sprawling religious complex.

As Iran prepares to bury former Supreme Leader Ali Khamenei, attention is turning to his successor. Mojtaba Khamenei's prolonged absence from public view has raised questions…

Will Mojtaba Khamenei appear at his father's funeral? Some argue the succession ritual demands it. Others aren't sure he's even alive to attend.