Prague - A fire in the control tower halted air traffic at Prague airport for five hours on Saturday, radio reports said.

The blaze broke out at around 5 am (0400 GMT), probably as a result of a cable defect. It was quickly extinguished, but smoke filled the room.

Before the smoke cleared, incoming flights were diverted to the German cities of Berlin and Dresden as well as to Karlovy Vary in the Czech Republic.

Operations were back to normal around 10 am. No one was injured in the blaze. (dpa)