The Egyptian Judges' Club, a union with around 9,500 members, said the country's judges would not - as is customary - supervise the December 15 referendum on a draft constitution, which President Mohamed Mursi called for.
We have decided to boycott the supervision on the constitution referendum scheduled on December 15, 2012, in protest against what is called 'constitution decree', and until this decree is rescinded.
The absence of the Judges Club's oversight is likely to raise more questions about the vote's validity.
More top news
Storm Imogen - when and where we will see the strongest winds? ITV Weather's Manali Lukha gives the breakdown.
Kate Middleton attended a special service to celebrate the landmark occasion in her first engagement as Honorary Air Commandant
The ISIS execution gang fronted by 'Jihadi John' had two British extremists who learned radical Islam together in London, ITV News reveals.