CAIRO—Egypt's top prosecutor requested on Monday the freezing of the foreign assets of ousted president Hosni Mubarak and his family, announced state TV.

Security officials said that the prosecutor general asked the Foreign Ministry to contact countries around the world so they can freeze his assets abroad. The president's domestic assets were frozen soon after he stepped down, they added.

The freeze applies to Mubarak, his wife, his two sons and two daughters-in-law, said the officials, who spoke on condition of anonymity because they weren't authorized to talk to the press.

The announcement came as British Prime Minister David Cameron arrived in Cairo to meet with top Egyptian officials, the first trip of a world leader since Mubarak's fall. He said he would talk to those in charge to ensure “this really is a genuine transition” to civilian rule.

Egyptian state media on Sunday had quoted Mubarak's legal representative as saying the former president had submitted to authorities a declaration that he had no assets abroad. The former president is believed to currently be residing in his estate at the distant Red Sea resort of Sharm el-Sheikh.

Egypt has so far asked for asset freezes of one top businessman and former ruling party official, as well as four former Cabinet ministers and detained them pending investigations.

The Mubarak's family's wealth — speculation has put it at anywhere from $1 billion to $70 billion — has come under growing scrutiny since Mubarak's Feb. 11 ouster opened the floodgates to three decades of pent-up anger at the regime.

Watchdog groups allege that under Mubarak, top officials and tycoons were given preferential treatment in land contracts, allowed to buy state industries at a fraction of their value during Egypt's privatization process launched in the early 1990s, and got other perks that enabled them to increase their wealth exponentially. The perks came at a price — and the Mubaraks were major beneficiaries, the activists say.

Egyptian youth activists meeting with foreign diplomats in Cairo Monday, also singled out the search for Mubarak's assets as one of the ways other countries could help Egypt following the three week uprising that transfixed the world.

“When Egypt gets back that money, it won't need the foreign aid, and you will be relieved of that burden,” said Islam Lutfi, who represent the Muslim Brotherhood on the activist coalition.

In a meeting organized to brief the diplomats from the United States, the EU and Australia, on their activities and future plans, the seven activists said they are deeply worried that the military-backed government is not making enough effort to involve them in the consultations over the post-Mubarak era.

“The message they kept sending to us is that they are not ready to talk to the coalition,” said Ziad al-Oleimi, a member of the coalition which along with young cadres from the Muslim Brotherhood represent five youth organizations and political parties that initially launched the anti-Mubarak protests. “They only say we should help them to ensure stability, but never talk about what the people want.”

Al-Oleimi, a lawyer, said among urgent demands that the young activists are pressing is to form a broad-based government with no Mubarak's cronies in it, lift emergency rule, release political prisoners and abolishing laws on political parties and allow free and fair election.

The military council has dissolved parliament, which was stacked with Mubarak loyalists, and suspended the constitution, but has declined to discuss specific actions on how to purge the political system of senior Mubarak loyalists.

The activists warned that they will resort to mass protests again if their demands were not met.

The meeting took place as senior U.S. and European officials arrived in Egypt to meet with the country's military leaders.

U.S. Undersecretary of State for Political Affairs William Burns arrived Monday for three-day visit. And British Prime Minister David Cameron came to meet Egypt's Defence Minister Hussein Tantawi, Prime Minister Prime Minister Ahmed Shafiq and members of the country's opposition groups.

He told reporters on the plane to Cairo that he would to “talk to those currently running Egypt to make sure this really is a genuine transition from military rule to civilian rule.”

Cameron told Tantawi, the head of the military council running the country, that Britain wanted to support Egypt's transition to democracy. “As old friends of the Egyptian people, we come not to tell you how to do things but to ask how we can help you do what we know you want to do,” he said.

Cameron said he would not meet with representatives of the Muslim Brotherhood, Egypt's largest and best organized opposition group, which was banned but tolerated under Mubarak.

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The group announced Monday that it had chosen a name for its new political party, “Freedom and Justice.” Though allowed to compete in elections as independents, the Muslim Brotherhood was never allowed to formally turn itself into a political party under the previous regime.

Addressing recent anti-government protests around the region, Cameron called on Middle Eastern governments to respond with “reform not repression.”

Libya's response has been particularly brutal, and Cameron called its treatment of protesters “completely appalling and unacceptable.”

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