Prince Saud al-Faisal accused Western countries of tacitly encouraging Muslim Brotherhood violence with their criticism of the Egyptian military.
Mubarak, who ruled Egypt for 30 years, was arrested soon after his overthrow and became the first Arab leader to face trial.
A security source said the nine were “prominent participants suspected of incitement and chanting hostile slogans”.
Saudi foreign minister Prince Saud al-Faisal met French president Francois Hollande with both calling for fresh elections in Egypt.
The prince said Tareq al-Suwaidan, who has more than 1.9 million Twitter followers, had identified himself as “one of the leaders of the Muslim Brotherhood”.
Activists in the Kingdom have been demanding more democratic reform for two and a half years.
Egyptian Prime Minister Hazem el-Beblawi proposed dissolving the group in a move that would force it underground and could usher in mass arrests of its members countrywide.
The Foreign Office said on August 6 it had withdrawn all staff from the embassy due to a high threat of kidnapping.
Hundreds were killed in Egypt last week when the security forces cleared protest camps set up by the Muslim Brotherhood.
Karman was the first Arab woman and second Muslim woman to win the Nobel peace prize.
Hundreds were killed as Egyptian authorities cleared out two camps of Mursi supporters on Wednesday.
Habiba Ahmed Abd Elaziz, who worked with Xpress,had been on leave when she was shot dead.
A ministry official put the death toll at 300, but the Muslim Brotherhood claimed over 2,000 people had been killed in a “massacre.”
Protesters in Bahrain took to the streets to demand democratic change in the Gulf state.
Will the gas nation’s change of Emirship herald a new political era?
International efforts have failed to mediate an end to a six-week political standoff between Mursi’s supporters and the army-backed government.
More than 300 people have already died in political violence since the army overthrew Mursi on July 3.
Fifteen prisoners crossed an Israeli checkpoint into Palestinian territory while eleven were released in the West Bank capital of Ramallah.
Activists calling for democracy say they were inspired by mass protests in Egypt last month.
Prime Minister Sheikh Khalifa bin Salman al-Khalifa has warned that those behind the planned demonstrations will be punished.
Almost 300 people have been killed in political violence since the overthrow of President Mohamed Mursi.
The US embassy in Sanaa, Yemen will remain closed due to security concerns.
More than 1,000 Iraqis have been killed in July, the highest monthly death toll since 2008.
Protesters inspired by the rebel protests in Egypt last month have called for rallies on Wednesday
Sources say Saudi Arabia wants Moscow to ease its strong support of Assad and agree not to block any future Security Council Resolution on Syria.
Acting President Adli Mansour, in a message on the eve of the Muslim Eid al-Fitr holiday, said Egypt was in critical circumstances.
Prince Salman bin Sultan is a son of the late Crown Prince Sultan, a veteran defence minister until his death in 2011.
France’s 2004 ban on headscarves in schools and 2010 ban on full face veils in public have alienated many of its five million Muslims.
Omar Hassan al-Bashir’s plane was barred from entering the Kingdom’s airspace this week while on a flight to Iran.
It was not clear whether Bashir was on his way to the inauguration of Iranian President Hassan Rouhani.