There is some good news for travellers stranded by the latest volcanic ash cloud in Europe: air traffic restrictions have been eased in Britain, Ireland and the Netherlands.
Flights in and out of Heathrow and Gatwick airports, for example, have been allowed to resume.
But there are warnings that it may only be temporary.
Air travel specialist Bob Atkinson said: “This ash is going to keep coming back through the summer and the volcanologists are telling us that this may not be the only volcano that there is to potentially explode (in Iceland.)
“I think it’s without a doubt that everybody’s now gearing up for the fact that there will be potentially a summer of disruption.”
No fly zones remain in place over parts of Northern Ireland and the Shetland Islands.
But the main airports in Amsterdam and Rotterdam have been allowed to reopen.
Hundreds of thousands of passengers have been stranded by the latest disruptions, forcing many to either sit it out or find alternative road and sea transport.