Air traffic over northern Germany is returning to normal after being disrupted by volcanic ash from Iceland. Planes are once again taking off and landing at Hamburg, Bremen and Berlin airports. Europe's air traffic agency, Eurocontrol said about 700 flights were cancelled in Germany today. Flights in and out of Bremen and Hamburg resumed in the middle of the day, when the German air traffic control agency said the ash level was no longer critical. Berlin was the last major centre to re-open its airspace, at 1400 hrs local time. Euro control said there are no flight restrictions elsewhere in Europe. France's civil aviation authority has said it expected very little disruption to air traffic and was not expecting to close any of the country's airspace. Britain's weather service said the concentration of volcanic ash in UK airspace would decrease significantly over the course. The Grimsvotn volcano in Iceland had erupted last Saturday, sending clouds of ash high into the air. Icelandic Meteorological Office said the Volcano appeared to have stopped emitting ash at 0200 hrs GMT on Wednesday.