(CNN) -- A fire broke out Tuesday on the roof of the Berlin Philharmonic's concert hall, causing thick smoke to pour from the modern building, police said.
Firefighters were battling a blaze at the Berlin Philharmonic's concert hall on Tuesday.
The fire began shortly after 2pm, police said, adding that the cause was not immediately known. It was still burning more than two hours later, a witness said. No one was injured.
A concert was scheduled to take place Tuesday afternoon, the Philharmonic's Web site said.
The concert hall is in central Berlin, close to the Potsdamer Platz, an area of new high-rise buildings. The modern building was built in the early 1960s and has become well-known in the city.