That's what delayed me this morning
I flew into DUS this morning on BA936 from LHR, and this caused me an hour and a half delay.
Didn't get a real good look at it but it was certainly visible.
They must have just changed direction, as we landed into the opposite direction, which probably also explains why both runways were open again so soon.
By the time we got there, the runway involved was already being used for takeoff.