At least six people were killed and dozens wounded on Saturday in the third straight day of riots pitting local residents against police in the Guinean capital Conakry.

Deadly violence has erupted in recent weeks in the west African nation, where opposition activists have accused President Alpha Conde of seeking to rig elections planned for June 30.

Three Chinese government ships entered waters around disputed islands controlled by Tokyo on Sunday, Japan's coastguard said.

The Chinese maritime surveillance vessels were spotted inside the 12-nautical-mile zone off the Senkaku islands, which China calls the Diaoyus, in the East China Sea shortly after 10:00 am (0100 GMT), the coastguard said.

A French soldier has been stabbed while on patrol in Paris but President Francois Hollande said the attack could not "at this stage" be linked to the murder of a military man in London.

The attacker fled the scene after stabbing 23-year-old Cedric Cordier on Saturday afternoon in La Defense business district, which at weekends is packed with shoppers.

Cars were torched and police faced stone-throwing youths in Stockholm's immigrant-dominated suburbs early Sunday, but the nightly riots that have raged for a week appeared to be easing, police said.

A handful of cars were set ablaze in various suburbs.

In a ruling out Saturday, Venezuela's Supreme Court rejected one of six challenges to the April 14 presidential election which saw Hugo Chavez's successor Nicolas Maduro win by a razor-thin margin.

Oficially, Maduro -- the late president Chavez's handpicked successor -- won the controversial election by 1.49 percentage points. His rival, Henrique Capriles, has refused to concede.

The death toll from an ambush by Maoist rebels in central India has risen to at least 23 with many more seriously wounded, a top police officer said on Sunday.

"The total number of dead now stands at 23. We can also confirm that 32 people are injured, most of them seriously," state police director general Ramniwas, who goes by one name, told AFP.

Tens of thousands of people rallied near Malaysia's capital Saturday night against alleged electoral fraud, further raising the political temperature after divisive recent polls.

The latest in a series of protest rallies over the May 5 elections -- which the opposition says were won fraudulently by the 56-year-old ruling coalition -- saw a large crowd gather in an open field outside Kuala Lumpur.

A Sri Lankan Buddhist monk died Saturday of severe burns a day after setting himself on fire to protest the slaughter of cattle, an official said.

Bowatte Indaratna, 30, succumbed to his injuries at the National Hospital in Colombo where he was rushed Friday after his self-immolation bid in front of the highly venerated Temple of the Tooth in the central town of Kandy.

French President Francois Hollande on Saturday invited African leaders to a "peace and security" summit later in the year.

"I invite all African leaders to Paris for a meeting that will be devoted to peace and security and therefore in some way also, the fight against terrorism," he told reporters on the sidelines of African Union celebrations to mark 50 years of a continental bloc.

Forget the European Union, many in this Croatian village are saying. The group of nations being celebrated this weekend is one that died more than 20 years ago when Yugoslavia — now fervently remembered as a haven of peace, prosperity and equality — fell apart in a cascade of ethnic wars.

Thousands of people came together Saturday in the birthplace of Yugoslavia's late communist leader, Josip Broz Tito, to mark his birthday and pay their respects to him and the ex-federation.