France's interior minister said Sunday security forces would remain in place "as long as necessary" after a second night of violence in the Paris suburbs sparked when police stopped a woman for wearing a veil.
Chinese authorities imposed tight control in the capital of Xinjiang, the fourth anniversary of ethnic rioting which killed around 200 people, said state media and exile groups.
The death toll in one of the worst riots in China's restive Xinjiang area has been raised to 35 from 27, state media said Friday, amid reports of tightened security ahead of a sensitive anniversary.
The United States said Tuesday it was providing some $100,000 to help the victims of communal riots in Myanmar, as the violence crept closer to the main city of Yangon.
Rioting broke out in Belfast late Friday in the latest flare of violence in Northern Ireland, just hours after US Secretary of State Hillary Clinton visited the troubled British province urging peace.
Police in a south China city bordering Vietnam clashed with thousands of rioters who were protesting excessive brutality meted out to a suspected smuggler.
Anti-riot police fired tear gas on Saturday to disperse protesters camped out in Cairo's Tahrir Square as Western governments voiced growing concern over Islamist President Mohamed Morsi's assumption of sweeping powers.
The Canadian Parliament passed a ban Wednesday on masks at riots that punishes violations with up to 10 years behind bars in a bid to crack down on radical groups.
Around 100 protesters and 11 policemen were hurt on Sunday as Kuwaiti riot police used tear gas and rubber bullets in clashes with tens of thousands of demonstrators.
Big Japanese insurers have stopped covering firms against riots in China, a report said Friday, a move seen likely to hit investment there as the countries remain stuck in a festering territorial row.
Scuffles broke out in central Tehran in the first sign of unrest over Iran's plunging currency, which has lost more than half its value since last week in a crisis Washington said is of its own making.