A fire in an apartment block in Berlin overnight killed eight people, four of them children, German officials said on Tuesday. The fire broke out in the stairwell of the five-storey building in the German capital's central Moabit district but the cause was not immediately clear. "In their panic the victims tried to escape by using the stairwell," said a fire brigade spokesman. He said the death toll was the second highest in a fire in Berlin since World War Two. Eight people were taken to hospital and 43 others were treated at the scene after inhaling smoke from the blaze.