But as Mursi's opponents staged a sixth day of protests in Tahrir Square, critics said the Islamist-dominated assembly's bid to finish the constitution quickly could make matters worse.

Two people have been killed and hundreds injured in countrywide protest set off by Mursi's decree.

The Brotherhood hopes to end the crisis by replacing Mursi's controversial decree with an entirely new constitution that would need to be approved in a popular referendum, a Brotherhood official told Reuters.