Growing xenophobia and rightwing extremism could threaten peace in eastern Germany.
Clashes broke out between hundreds of asylum seekers at a shelter in Berlin, in the second mass brawl to erupt over the weekend in Germany's crowded migrant accommodations.
French Prime Minister Manuel Valls has called on the Gulf states to accept more refugees fleeing Syria, saying that a "humanitarian disaster" could erupt in the Balkans if Europe does not control its borders.
German Chancellor Angela Merkel came under fire for her welcoming refugee policy from her powerful Bavarian coalition ally, who demanded she cap arrivals "in the national interest".
French Prime Minister Manuel Valls on Tuesday urged the European Union to limit the number of migrants it allows into the bloc.
US President Barack Obama said the world must offer haven to refugees, as he visited a Malaysian centre for displaced children amid a bitter and racially tinged US debate over the Syria exodus.
Some of the suspects in the Paris attacks took advantage of Europe's migrant crisis to "slip in" unnoticed, warning the EU needed to "take responsibility" over border controls.
Greek Prime Minister Alexi Tsipras held talks with the Greek orthodox patriarch as he embarked on his first official visit to Turkey set to be devoted to grappling with the huge flow of refugees entering his country from Turkish territory.
Canadian Prime Minister Justin Trudeau faced increasing calls to delay bringing in 25,000 Syrian refugees by year's end due to security concerns, following attacks in Paris.
Former Polish leader and Nobel Peace Prize laureate Lech Walesa slammed plans by his country's incoming government to stop welcoming refugees.
European Commission President Jean-Claude Juncker firmly defended Sunday the EU's hotly-contested plan to redistribute refugees across Europe despite calls by Poland to scrap the scheme after the deadly attacks in Paris.
Germany's interior minister called for family reunification rights of Syrian asylum seekers to be limited, saying the country cannot cope with a doubling of its already record refugee numbers.
Donald Trump reiterated his pledge during Tuesday's Republican presidential debate to deport millions of undocumented workers, a plan trashed by rivals including Jeb Bush.
The shy children from a dog-eared photograph found in the pocket of a migrant drowned off Italy may never know what happened to the man who might have been their father.
EU leaders will push their wary African counterparts to help tackle the migration crisis at a summit in Malta this week, offering them billions of euros in aid in exchange for cooperation
Canada's new prime minister vowed to make good on campaign promises to resettle 25,000 Syrian refugees by the beginning of next year and bring home fighter jets battling the Islamic State group in Iraq and Syria.
Germany plans to speed up repatriations of rejected asylum-seekers from new central hubs, Chancellor Angela Merkel and her coalition allies agreed, vowing to bring order to a record migrant influx.
Croatians vote in a general election as the nation faces an ongoing influx of refugees -- a crisis that rival political camps have tried to exploit, while lacking concrete policy pledges to kickstart the sluggish economy.
Eurogroup chairman Jeroen Dijsselbloem said the fallout from the refugee crisis should be considered when assessing some members' budgets, adding it had already had a major impact on debt-ridden Greece.
Fresh off his election as speaker of the House of Representatives, US Congressman Paul Ryan refused to cooperate with President Barack Obama on immigration, ruling out any reform before 2017.