A large number of migrants have been found dead inside a truck on a highway in Austria, police said on Thursday.

The vehicle, with Hungarian license plates, contained between 20 and 50 bodies and was found on a parking strip off the highway in Burgenland state, police spokesman Hans Peter Doskozil said at a press conference with Interior Minister Johanna Mikl-Leitner.

The vehicle, with Hungarian license plates, contained between 20 and 50 bodies and was found on a parking strip off the highway in Burgenland state, police spokesman Hans Peter Doskozil said at a press conference with Interior Minister Johanna Mikl-Leitner.

“We were all shaken by the horrible news that up to 50 people died… although these were people coming to seek safety,” she added. “This is a warning to work to resolve this problem and show solidarity.”

This year has seen record numbers of people trying to reach the European Union by sea and land as they flee conflict in Africa, Asia and the Middle East.

Ahead of the conference, Austria’s Foreign Minister Sebastian Kurz warned that his country would consider introducing tougher anti-migration measures including “much tighter border controls,” if the EU failed to come up with a unified response.

“Austria has more migrants than Italy and Greece combined… so we shouldn’t pretend that only Italy and Greece are affected,” he said in an interview with public broadcaster ORF.