Egyptian Vice President Mahmud Mekki announced his resignation on Saturday, state television reported, on the day of a referendum on a new constitution that leaves unclear whether his position would be maintained.
Mekki, 58, was a respected judge before President Mohamed Morsi named him to the post in August.
He led judicial opposition to ousted leader Hosni Mubarak, but eschewed calls to become a presidential candidate himself, saying he wished to stay politically independent.
Egypt VP Mekki resigns: state TV
