Bangladesh deployed troops in the north of the country on Sunday as 10 more people were killed in fresh clashes over the conviction of Islamist leaders for war crimes in the Muslim-majority nation.

Hundreds of thousands of people took to the streets of Lisbon and other Portuguese cities Saturday to protest against the government's austerity measures aimed at rescuing the debt-hit eurozone nation.

US Secretary of State John Kerry was in Cairo on Saturday to push for a way out of Egypt's violence-wracked political impasse, underlining the need for a consensus to overcome a crippling economic crisis.

Egyptian protesters stormed a police building in the city of Mansura on Saturday, amid renewed clashes after a demonstrator's death overnight, the official MENA news agency reported.

Saudi police have arrested 176 people, including 15 women, for holding an illegal protest to demand the release of Islamist prisoners, according to the official SPA news agency.

Hundreds of Democratic Front for the Liberation of Palestine supporters clashed with Israeli forces on Saturday and expressed support Palestinians held in Israel prisons.

Bangladesh police on Saturday opened fire at Islamists protesting the conviction for war crimes of one of their leaders, killing three people outside the port city of Chittagong.

Police arrested five students Saturday on charges of murdering an anti-Islamist blogger, as four people were killed in fresh protests over the sentencing to death of an Islamic party leader for war crimes.

A Yemeni was shot dead and four others wounded on Saturday during clashes between the security forces and armed separatists in the southern city of Aden, a hospital official said.

Russia on Saturday said it was concerned by a US ruling that the death of an adopted Russian boy in Texas was an accident, fuelling a diplomatic row as several thousand people marched in Moscow demanding an end to all foreign adoptions.

Soldiers killed one young person and wounded several other people in Conakry, witnesses and a doctor said Saturday, despite appeals for calm following days of political violence.

One person was killed and dozens injured in overnight clashes between police and protesters in Egypt's Nile Delta city of Mansura, a security official told AFP on Saturday.

Bangladesh police on Saturday opened fire at Islamists protesting the conviction for war crimes of one of their leaders, killing three people outside the port city of Chittagong.

The United States called for calm Friday after dozens were killed in clashes that erupted in Bangladesh when a senior Islamist leader was convicted for crimes in the 1971 war of independence.

Tunisian President Moncef Marzouk extended by three months on Friday a state of emergency in force since the 2011 revolution, as the country faces its worst crisis since the uprising.

Hundreds of Salafists protested on Friday in the Tunisian town of Sidi Bouzid, calling for the release of an imam arrested as part of an inquiry into a gunfight between police and radical Islamists.

Bearded policemen were among some 200 people who took to the streets of Cairo on Friday to demand that policemen suspended for growing beards, worn by pious Muslims, be reinstated.

Detested for nearly three decades as a symbol of oppression, the Berlin Wall again sparked angry protests Friday when a crane began dismantling a segment under plans for a new housing development.

Police fired tear gas on Friday to disperse Muslim protesters outside a church in southern Egypt after claims that a woman who converted to Christianity was hiding inside, a security source said.

Iraqi Finance Minister Rafa al-Essawi announced his resignation on Friday at an anti-government protest, ramping up a conflict between his secular Sunni-backed Iraqiya bloc and the Shiite premier.