Envoys of the Middle East Quartet were meeting with Israel's chief peace negotiator on Thursday, as the Jewish state faced growing pressure to break the logjam in talks with the Palestinians.

Talks with Israeli envoy Yitzhak Molcho were being hosted by the U.S. embassy, with Washington represented by David Hale, assistant to U.S. Middle East envoy George Mitchell, an embassy spokesman told Agence France Presse.

French Foreign Minister Alain Juppe on Thursday said Paris and Berlin were calling on their European Union partners to engage in dialogue with Libyan opposition leaders.

Speaking after talks with German Foreign Minister Guido Westerwelle, Juppe said, "We are on the same track to say Colonel Gadhafi is discredited, he must go, we must engage dialogue with the new Libyan representatives."

Moroccans largely welcomed Thursday King Mohammed VI's promise of sweeping reforms, announced as uprisings rock the Arab world, but said they wanted to see if concrete changes would result.

France and Spain, former colonizers which have become key trade partners, also praised the monarch's announcement in a rare national speech late Wednesday, calling it courageous and historic.

Yemeni President Ali Abdullah Saleh on Thursday bowed to pressure after a month of violent protests, but his pledge to devolve power to parliament was swiftly rejected as too late by the opposition.

In a major speech delivered in a gravelly voice to tens of thousands of people at a stadium in the capital Sanaa, the veteran leader of the strategic U.S. ally promised to hold a referendum on a new constitution later this year.

Nicolas Sarkozy will on Thursday meet envoys of Libya's rebel national council which is fighting to oust strongman Moammar Gadhafi, the French president's office said.

Sarkozy would meet Mahmoud Jibril and Ali Essaoui to discuss the "general situation in Libya, in particular the humanitarian situation and the actions of the national council," a statement said.

Hundreds of baton-wielding riot police barred Sudanese opposition activists from demonstrating on Wednesday, arresting dozens and beating up others, an Agence France Presse correspondent reported.

Some 500 riot police were deployed in Abu Janzeer square, in the center of the Sudanese capital Khartoum, after an alliance of opposition parties announced plans to hold a demonstration there at 1:00 pm (1000 GMT).

A Tunisian court ordered the former ruling RCD party to be dissolved Wednesday, consigning a key pillar of toppled president Zine El Abidine Ben Ali's 23-year regime to the scrapheap.

The Rally for Constitutional Democracy (RCD) had already been suspended from official duties in February after Ben Ali fled on January 14 at the height of a popular uprising to overthrow his autocratic regime.

Saudi Arabia said Wednesday that a decision to support imposing a no-fly zone over Libya was up to the Arab League, not only Gulf countries.

"It is an issue that is the responsibility of the Arab League," Foreign Minister Prince Saud al-Faisal told a press conference in the Red Sea city of Jeddah.

A bomb struck a vehicle in Algeria and killed five people, media reported Wednesday, in the deadliest attack in months as the country battles violence blamed on Islamist militants.

Three of the people killed in Tuesday's blast were from the same family, local media reported.

Saudi Arabia came under renewed pressure Wednesday to ease its ban on demonstrations, as Facebook activists called for a "Day of Rage" and a "Saudi revolution" later this week.

With the tightly controlled kingdom's security forces poised to crack down on any unauthorized demonstrations, U.S.-based lobby group Human Rights Watch added its voice to demands for a relaxation of the protest ban.