Germany has grounded air traffic across its northern airspace because of ash from an erupting volcano in Iceland.
Bremen airport was closing at 0300 GMT and Hamburg at 0400 GMT, Germany's weather service said.
The airspace over Berlin and Hanover could also be affected.
Air traffic in Norway and Denmark has been disrupted but flights were expected to resume across the UK after some airspace in the north was closed.
However air traffic is returning to normal in other parts of northern Europe, a day after about 500 flights were cancelled across the region.
On Tuesday, dozens of planes were grounded at UK airports including Glasgow, Edinburgh, Newcastle, Barra, Prestwick, Cumbernauld, Londonderry, Tiree, Carlisle and Durham Tees Valley.
Airports say they are hoping to resume normal services but have warned of possible delays and passengers are advised to check with their airline before travelling.
Tuesday's cancellations came just over a year after another volcanic eruption in Iceland caused widespread disruption across Europe, including the closure of UK airspace, amid concerns about the damage volcanic ash could cause to engine aircraft.
The Grimsvotn volcano in Vatnajokull National Park began erupting on Saturday and closed Iceland's airspace for a period.
Experts say the eruption is on a different scale to the one last year and is producing larger ash particles, which fall to the ground more quickly.
Icelandic government adviser Professor Magnus Tumi Gudmundsson said the eruption from the volcano was slowing down "day by day" and he believed the worst was over.
This quaint (though expensive) neighborhood is known as the birthplace of Sydney because it is where British settlers first landed in 1788. Such historical significance is noticeable and marketed throughout the town via landmarks such as the Sydney Observatory (the colony's first windmill) and Cadman's Cottage (Sydney's oldest building that was built in 1816). The great thing abou...
Zurichhorn is a public park along the western end of Lake Zurich (or the Zurichsee). It's located at the small delta where the Hornbach stream flows into the lake. During the sixteenth and seventeenth centuries, wealthy Zurichers built new homes outside the city walls in what is now the Seefeld district. In the mid-nineteenth century, the area became a hub of sh...
This is a sprawling estate situated along the Moscow River. It is ideal for those who want a break from the fast paced city life of Moscow. It consists of luscious green gardens and orchards which are ideal picnicking spots where tourists can unwind. Visitors can go on boat rides along the river, or simply enjoy the fresh air against the backdrop of the beautiful Church of the Ascension built in t...
Robert E Lee lived in this beautiful home set high on the hills overlooking the Potomac river. His home and part of his 1110 acre property were confiscated when his wife fled after he left to command the confederate Army of Northern Virginia in the American Civil War. After the war, the family sued the federal government for reimbursement and received it. A fine blending of the styles of the Greek...