We are going to finish our live coverage for the night. EU leaders are still locked in talks in Brussels. The draft proposals being discussed include:

• donating at least €1bn (£700m, $1.1bn) to UN aid agencies to help Syrian refugees;
• sending more staff to shore up Europe's external borders and in the western Balkans, through which many migrants pass;
• giving more support to Lebanon, Turkey, Jordan and other countries neighbouring Syria.

Our latest news story on the talks is here: EU splits exposed as talks take place

You can follow developments overnight on the BBC World News page.

And you can follow all of our correspondents around Europe on Twitter here, external.

Croatia's Opatovac transit camp, near the eastern border town of Tovarnik, was cleared out earlier today in preparation for new arrivals and is now filling up again, with thousands of refugees and migrants queuing under the night sky.

Here's a reminder of what's actually being discussed at tonight's Euco meeting in Brussels.

The proposals, taken here from a European Council document, have been criticised in some quarters as inadequate.

The EU leaders at the meeting are not expected to make any pronouncements tonight on the most thorny issue - obligatory resettlement quotas.

Image source, EC

Image source, EC

Europe editor Katya Adler spoke to the BBC's 10 o'clock news from Brussels.

"Even though it's accepted that Europe's external borders need to be policed better, how do you do it? If you have an EU frontier patrol system, that means countries like Italy or Greece giving up their national sovereignty with their borders - and they don't want that at all."

We're going to keep our live coverage ticking over, although developments are scarce - but it's worth staying tuned.

The Wall Street Journal's Valentina Pop suggests we may have news from the EUCO meeting in about half an hour.

Some detail from the EUCO meeting

Precious little news yet from the summit, but while we wait: European Commission president Jean-Claude Juncker has a somewhat exuberant method of welcoming guests and today's summit has been no different.

Jeroen Dijsselbloem, head of the Eurozone finance group, perhaps described it best: 

"Every time I meet him, he embraces me and I get wet kisses.”

National Geographic photographer Matthieu Paley took a ferry from the Greek island of Lesbos to the capital Athens along with thousands of refugees and is posting striking images of the journey on Instagram.

You can follow him here, external.

Hungary's Foreign Minister Peter Szijjarto has called the proposals for obligatory quotas "nonsense" and said the EU should focus on getting back control of its borders.

Speaking to the BBC on Wednesday, he said Hungary does not believe it is possible to implement a quota system.

Hungary has taken a tough stance on migrants and refugees and voted against the proposals to relocate 120,000 from Greece and Italy to other member states.

Click on the Key Video tab above to watch more of the BBC's latest migrant and refugee crisis coverage.

The hundreds of refugees waiting in Edirne, Turkey in the hope they will be allowed into Greece are now being told they won't be able to cross the border, Mark Lowen reports.

They have been holed up in a stadium in the border town, desperate for a breakthrough in talks that will allow them to enter the EU by land.

Some are now warning that they will go by sea.

The BBC's Europe Editor Katya Adler is at the summit in Brussels.

Across Europe, the growing number of refugees and migrants threatens to make any EU deal obsolete.

European Parliament President Martin Schulz has given a press conference in Brussels. He said the "enormous solidarity" shown towards refugees by the people of Europe should be a “spur to action” for EU leaders.

“We are living in changing times. The world around us is changing, and Europe must understand that we have to change as well. To global challenges, a national answer is impossible," he said.

He also called on Russia and Iran to contribute to a solution to the refugee crisis. Syria is the greatest source of refugees making their way to the EU, and both Russia and Iran are close allies of Syrian president Bashar al-Assad.

You can watch Mr Schulz's press conference and more from the summit here., external

Croatia's interior minister has contradicted reports from earlier this evening that a ban on cargo traffic entering Croatia from Serbia had been lifted. 

Ranko Ostojic said the ban is still in place and will only be lifted if Serbia starts directing migrants north to Hungary, rather than Croatia, Reuters reports.

Croatian state radio had reported on Wednesday that the main Bajakovo-Batrovci border crossing had opened, but trucks are apparently only moving in only one direction - into Serbia. 

"Trucks are passing from the Croatian to Serbian side, that's correct. Otherwise, the crossing is open for passenger traffic," Ostojic told Reuters in Opatovac, near the Serbian border. 

"We are still waiting for a single bus (of migrants) to go through Horgos," he added, when asked when trucks would be allowed into Croatia.

The two ex-Yugoslav republics have been locked in a war of words since the blockade was imposed on Monday, with Serbia threatening repercussions on Wednesday if it remained in place.

Croatia wants Serbia to stop bussing migrants towards the border between the two countries.

The BBC's Lyse Doucet is tweeting from the summit in Brussels.

The meeting of EU leaders is now under way in Brussels. They will discuss proposals approved by their interior ministers yesterday to distribute 120,000 refugees and migrants from Greece and Italy to other EU countries.

On his way in, French President Francois Hollande sent a blunt message to any member states who would attempt to refuse their lot - Slovakia and the Czech Republic have indicated they will contest the decision - saying: "Those who don't share our values, those who don't even want to respect those principles, need to start asking themselves questions about their place in the European Union.''

The redistribution plan was passed by ministers yesterday in a majority vote but has caused a deep rift between the countries which approved and those which didn't. 

Along with Slovakia and the Czech Republic, Hungary and Romania voted against the plan. Finland abstained.

Image source, AFP

You can follow the EU leaders' summit in Brussels on Twitter using the hashtag #euco, and the wider crisis with #refugeecrisis and #migrantcrisis.

You can also follow all of the BBC correspondents reporting on the crisis here, external.

And there is a live stream with footage from Brussels here, external.

Hungarian Prime Minister Viktor Orban's tough stance on the refugee crisis has put him at odds with other EU countries, notably Germany which has advocated a more open policy. 

Earlier today he accused Germany of "moral imperialism" and its chancellor Angela Merkel of trying to impose her vision of an open EU on the rest of the bloc.

But arriving in Brussels this evening, Mr Orban rejected suggestions that he blamed the Germans for the worsening crisis.

"No, no we have to co-operate with the Germans, the Germans are in a difficult situation. We have to understand that," he said.

The key issue was whether the Schengen agreement remains in place, he added. 

"It's mandatory, it's an obligation ... if you don't follow the regulation, the whole of the European Union will dissolve into chaos."

Image source, Reuters