BUDAPEST, Hungary (AP) — Migrants poured into Budapest's Keleti rail station on Thursday as police stopped blocking its main entrance, piling into trains despite announcements that there was no service to Western Europe.

Hungary's railway company said it had suspended all direct trains from the Hungarian capital to western destinations "in the interests of railway transport security."

Hundreds of migrants dashed into the station shortly after 0600 GMT as police withdrew. They boarded trains waiting at the platforms despite announcements, including in English over station loudspeakers, that the trains were not heading west.

Some migrants could be seen getting off the domestic trains, while others remained on the carriages amid the confusion.

Police shut down the Keleti terminal to migrants on Tuesday, preventing those with valid tickets but no travel documents from boarding trains to Austria and Germany, the preferred destinations of many migrants.

There was no immediate explanation from police or other authorities of Thursday's decisions, which came hours before Hungarian Prime Minister Viktor Orban was to meet European Union leaders in Brussels to discuss the crisis.

On Wednesday, migrants had threatened to walk the 105 miles (170 kilometers) to the Austrian border if police would not let them board trains to their desired destinations in Austria and Germany.

Hungary tantalizingly opened the way Monday, allowing more than 1,000 migrants to pack westbound trains — and inspiring a migrant surge to the capital — before it withdrew the option 24 hours later.

Hungary, which for months had permitted most applicants to head west after short bureaucratic delays, now says it won't let more groups deeper into the European Union and claims EU backing for the move.

With an estimated 3,000 people camping outside the station, conditions have grown increasingly squalid despite the efforts of volunteers distributing water, food, medicine and disinfectants.