A tense stand-off between police and migrants on a train in Hungary is continuing into a second day.
On Thursday, police let the migrants board the train in Budapest but then tried to force them off at a refugee camp to the west of the capital.
Hungarian MPs face a key vote later on whether to tighten border controls as migrants try to pass through to their preferred destination, Germany.
Three other European meetings on Friday will discuss the migrant crisis.
The UN has meanwhile urged the EU to admit up to 200,000 refugees as part of "a mass relocation programme" that had the "mandatory participation" of all member states.
The Hungarian MPs will also vote on creating new holding camps for migrants, and on whether the situation constitutes a state of emergency.
Prime Minister Viktor Orban on Thursday described the situation as a "German problem" as Germany was where those arriving in the EU "would like to go".