DEVELOPING: Two Munich train stations were evacuated Thursday due to an “imminent threat” of a terror attack just minutes before New Years celebrations were set to hit the German city.

Authorities were asking anyone in Munich to stay away from crowds and the primary Munich train station, as well as another station in the city’s Pasing neighborhood.

Munich police said on Facebook that according to “serious information, there will be an attack tonight.”

The warning came about an hour before the city rang in the new year.

Police said they had received two different, “concrete” tips but did not elaborate on the nature of the threat or who had warned them.

German news agency dpa reported Thursday night that one train station had been evacuated and trains would no longer stop there.

Munich police tweeted out the initial warning from a verified account that was then translated by numerous organizations.

In the midst of the terror warning, police across Germany have stepped up security.

Berlin police were searching revelers who wanted to ring in the New Year at the Bradenburg Gate and were stopping people with large bags from entering the area, DW.com reported.

Up to a million revelers were expected at Berlin’s annual New Year’s Eve party at the landmark.

“It’s just now 2016 and people are celebrating the New Year like nobody seems to know about the terrorist warning,” Torbin Ostermann, a German journalist in Munich, told Sky News.

Ostermann added: “There is nobody in the main station at the moment, but the atmosphere in Munich is like a normal new year. It’s a bit weird though that we have a terrorist warning and people are firing off their fireworks.”

The Associated Press contributed to this report.