The unpronounceable Iceland volcano that goes by the name of Eyjafjallajokull is ejecting more plumes of ash, prompting authorities in Iceland and the UK to close a number of airports in Scotland and Northern Ireland from 9am Bulgarian time on May 5, the civil aviation authority told British media.

According to Sofia Airport's website, no flights to or from the UK, or elsewhere in Europe, have been delayed or cancelled because of the latest plume.

However, Glasgow, Prestwick and Derry are likely to be closed all day on May 5, with Belfast likely to be shut in the afternoon, British media said.

As before, the CAA told all passengers to check with airports before heading out to catch their flights. Additionally, the conditions are subject to change.

For the moment, the no-fly zones have not been imposed further south in Britain or elsewhere in Europe, but authorities say that this may change.

EasyJet have not reported any flight cancellations but other airlines are providing updated details on current conditions and cancelled flights. There are a number of flights cancelled by Ryanair, information on which can be found on the company's website at:

http://www.ryanair.com/en/notices/gops/100503-AHS-PART_2-GB

Aer Lingus has also cancelled flights, the list is available at their website, http://www.aerlingus.com/cgi-bin/obel01im1/bookonline/index.jsp

"The situation remains changeable, so passengers expecting to travel from airports in Scotland, Northern Ireland, the North of England and north Wales should contact their airlines to check whether their flight is operating," the CAA said in a statement cited by the Guardian:

In April, volcanic ash clouds from Eyjafjallajokull, grounded flights for a week, and the chain reaction triggered the first total airspace closures over Europe, costing losses for airlines in excess of 1.7 billion euro, in what has been described as the biggest transport disaster since World War II, the International Air Transport Association (IATA) said.