The flow of migrants through the Balkans picks up again with thousands entering Croatia, and the number doubling in a day for Germany.

Hungarian riot police fire tear gas and water cannon to force back migrants who broke through gates at the now closed Serbia-Hungary border.

Austria says it is deploying troops to help deal with a migrant influx, and will tighten controls on its border with Hungary.

Germany is to introduce some form of border controls with Austria, German and Austrian media report, as thousands more migrants arrive this weekend.

The number of migrants entering Hungary from Serbia hit a new record on amid tension in eastern Europe over how to deal with the crisis.

France suspends the country's honorary consul in the Turkish port of Bodrum after a television report showed dinghies being sold to migrants from a shop that she owned.

Hungarian Prime Minister Viktor Orban calls on the European Union to give Syria's neighbours €3bn (£2.2bn; $3.4bn) in financial aid to help those displaced by the civil war.

Hungary's army has begun exercises to prepare for a possible future role in guarding the southern border to try to stem the influx of migrants.

A Hungarian camerawoman is fired after shocking footage emerged of her intentionally tripping refugees fleeing police near the country's border as she covered the crisis for a local news outlet.

Germany can cope with at least 500,000 asylum seekers a year for several years, Vice Chancellor Sigmar Gabriel says.

German Chancellor Angela Merkel says the "breathtaking" flow of migrants into Germany will "occupy and change" the country in the coming years.

Austria says it is planning to phase out special measures that have allowed thousands of migrants to travel freely from Hungary to Western Europe.

A convoy of cars driven by German and Austrian activists crosses into Hungary to pick up migrants and help them reach western Europe.

Around 2,000 refugees have arrived at Austria's border from Hungary, and the numbers could more than double through the day, Austrian police say.

EU nations must accept up to 200,000 refugees as part of a "common strategy" to replace their "piecemeal" approach to the migrant crisis, the UN says.

Hundreds of migrants break out of a Hungarian border camp and others set off on foot from Budapest as authorities scrambled to contain a migrant crisis that has brought Europe's asylum system to breaking point.

From learning the real issues to supporting both large organizations and grassroots efforts alike, here are six concrete ways that you can help during the refugee crisis.

The image of little Aylan Kurdi is hammering home the Syrian migrant crisis to the world, largely through social media.

Globalisation is supposed to tear down barriers, but security fears and a widespread refusal to help migrants and refugees have fuelled a new spate of wall-building across the world, even if experts doubt their long-term effectiveness.