Britain will take in thousands more Syrian refugees, Prime Minister David Cameron said Friday amid growing pressure at home and abroad to address the crisis.

"Given the scale of the crisis and the suffering of the people, today I can announce that we will do more, providing resettlement for thousands more Syrian refugees," he told reporters on a visit to Lisbon.

EU countries were set to try to bridge differences on Europe's escalating migrant crisis at a foreign ministers' meeting Friday, with the shocking image of a dead Syrian toddler washed up on a beach driving calls for binding refugee quotas.

The heartbreaking images of three-year-old Aylan Kurdi lying dead in the surf -- and his father's emotional account of how the little boy and his four-year-old brother "slipped through my hands" -- have ramped up pressure on political leaders to address Europe's worst refugee crisis since World War II.

French prosecutors confirmed Thursday that a wing part found on a remote Indian Ocean island was from ill-fated Malaysia Airlines flight MH370, a month after tests on the flaperon began.

"It is possible today to say with certainty that the flaperon discovered on Reunion island on July 29 came from flight MH370," Paris prosecutors said in a statement, confirming claims made by Malaysia's prime minister last month.

Germany and France have agreed that the European Union, facing an unprecedented influx of migrants, should impose binding quotas on the numbers member states take in, Chancellor Angela Merkel said Thursday.

"I spoke this morning with the French president, and the French-German position, which we will transmit to the European institutions, is that we agree that ... we need binding quotas within the European Union to share the burden. That is the principle of solidarity," Merkel told reporters during a visit in the Swiss capital.

More than 1,000 tractors rolled into Paris on Thursday as farmers attempted to clog up the capital's roads in protest at their plummeting incomes.

Tractors were lined up at the busy Nation roundabout in the east of the city, but Parisians heeded calls to avoid using their cars and traffic was less congested than normal during the morning rush hour.

Harrowing pictures of a drowned Syrian boy washed up on a Turkish beach brought home the horror of the escalating refugee crisis Thursday as Europe was accused of letting the Mediterranean become a "cemetery" for migrants.

Turkey's President Recep Tayyip Erdogan bluntly blamed EU states for the death of every single migrant who lost their lives making the perilous journey to Europe.

French judges investigating claims that Palestinian leader Yasser Arafat was murdered have closed the case without bringing any charges, a prosecutor said Wednesday. 

"At the end of the investigation... it has not been demonstrated that Mr. Yasser Arafat was murdered by polonium-210 poisoning," the three judges ruled, according to a statement from the prosecutor from the court in Nanterre near Paris told AFP. 

Hundreds of passengers were left stranded in northern France overnight Tuesday to Wednesday after their Eurostar to London was stopped in its tracks by migrants who are thought to have climbed onto the roof of the train.

The train from Paris slowed to a halt on Tuesday night as it was about to enter the Channel Tunnel and police arrived on the scene, including with a helicopter overhead, witnesses said, in a bid to stop migrants who had got onto the tracks from going further.

French police arrested a man Wednesday after eight people, including two children, were killed in a fire in a Paris apartment building that investigators believe may have been started deliberately.

More than 100 firefighters battled the blaze in the 18th district of the French capital, at the foot of the Montmartre hill and its tourist attractions.

The French prime minister was set to meet EU officials in the refugee pinch point of Calais on Monday as increasingly urgent efforts to deal with migration into Europe exposed divisions across the continent.

France is expecting several million euros more in aid from Brussels, a government source said, to help deal with the thousands of migrants and refugees camped out in "The Jungle" around the northern port, hoping to reach Britain.