Egyptian flag (Creative Commons)

The protesters wanted to prevent attempts to question the legality of the new draft constitution, according to the Daily Beast.

The high court was indefinitely suspended after the protest.

CNN reported:

Calling Sunday a "dismal, black day" in the history of the country's judiciary, the court said in a statement that its judges will not return to work until they can do their jobs "without any psychological or physical pressures."

"The judges of the Supreme Constitutional Court have no choice but to declare to the great Egyptian people that they are unable to perform their sacred mission in light of the current charged situation," the statement said, according to the state-run MENA news agency.

It was the latest salvo in a growing crisis that pits Morsy (sic) and his conservative Islamist allies against liberal, secular opponents, raising fears among observers that the political strife could translate to violence in the streets.

Morsi's opponents have said the constitution has flaws, but the Islamist Muslim Brotherhood party has supported it.

Reach Senior News Editor Hannah Madans here.