ANKARA (Reuters) - Turkey's main opposition party, already battered by an unprecedented legal crackdown, could see its leader ousted by a court on Monday in what some see as a test of the country's shaky balance between democracy and autocracy.

An Ankara court is set to decide whether to annul the party's 2023 congress over alleged procedural irregularities - a move that would strip its chairman, Ozgur Ozel, of his title and further erode the opposition's leadership and authority.

TUNIS (Reuters) - Algerian President Abdelmadjid Tebboune appointed Sifi Ghrieb as the country’s new prime minister and Mourad Adjal as minister of energy and renewable energy in a cabinet reshuffle, a presidential statement said on Sunday.

Ghrieb, who was the industry minister, had been serving as acting prime minister since Tebboune ended the tenure of Nadir Larbaoui last month.

Adjal was the CEO of Algeria's state power firm Sonelgaz.

The ministers of finance, trade and foreign affairs remained in their positions, the presidency said.

Two ships set sail Sunday evening from the Greek island of Syros to join the Global Sumud Flotilla, an international mission aiming to break the Israeli blockade of Gaza and deliver humanitarian aid, AFP journalists saw.

Chanting "Free Palestine", around 500 people gathered at the port of Ermopoulis to see off the two Greece-flagged boats, the Oxygen and Ilektra, carrying goods for famine-hit Gaza along with five and eight people on board respectively.

French investigators have opened a corruption inquiry into former Lebanese prime minister Najib Mikati, lawyers who made the formal complaint said Sunday.

Mikati, a 69-year-old billionaire telecoms tycoon, was prime minister until January this year.

The Collective of Victims of Fraudulent and Criminal Practices in Lebanon and the anti-corruption group Sherpa, which announced the inquiry, first made a complaint against Mikati in 2024.

The groups accused Mikati and his brother, Taha Mikati, of fraudulently building up their fortune.

Spain's political class clashed over chaotic pro-Palestinian protests in Madrid that brought the Vuelta to a premature end Sunday, with the opposition accusing the leftist government of permitting an "international embarrassment".

And comments from Socialist Prime Minister Pedro Sanchez Sunday brought an angry response from Israel.

Demonstrators denouncing the participation of the Israel-Premier Tech team in one of cycling's major races overwhelmed police and invaded the course in the Spanish capital, forcing organisers to cut short the final stage.

MADRID (Reuters) -Spain's La Vuelta cycling race was halted in Madrid on Sunday afternoon as cyclists were entering the city after police clashed with pro-Palestinian protesters in the Spanish capital's centre.

(Reporting by Inti Landauro, editing by Charlie Devereux)

ANKARA (Reuters) -Tens of thousands of people protested in the capital Ankara on Sunday against a court case that could oust the head of the main opposition on Monday after a year-long legal crackdown on hundreds of its members.

Live footage showed crowds chanting for President Tayyip Erdogan's resignation while waving Turkish flags and party banners.

(Reuters) -Spanish Prime Minister Pedro Sanchez said on Sunday he admired the pro-Palestinian protesters whose demonstrations along the route of the Vuelta a Espana cycling race led some riders to threaten to quit the competition last week.

With large demonstrations planned, more than 1,000 police officers were deployed on Sunday as cyclists reached the final stage of the 21-day race in the capital, Madrid.

By Jana Choukeir and Andrew Mills

DOHA (Reuters) -An Arab-Islamic leaders summit in Doha on Monday is expected to rally support for Qatar in the wake of last week's Israeli attack targeting the Palestinian militant group Hamas in the Gulf state.

The attack, which Hamas says killed five of its members but not its leadership, has prompted U.S.-allied Gulf Arab states to close ranks, adding to strains in ties between the United Arab Emirates and Israel, which normalised relations in 2020.

By Nidal al-Mughrabi and Simon Lewis

CAIRO/JERUSALEM (Reuters) -Israeli forces destroyed at least 30 residential buildings in Gaza City and forced thousands of people from their homes, Palestinian officials said, as U.S. Secretary of State Marco Rubio arrived on Sunday to discuss the future of the conflict.

Israel has said it plans to seize the city, where about a million Palestinians have been sheltering, as part of its declared aim of eliminating the militant group Hamas, and has intensified attacks on what it has called Hamas' last bastion.