Ireland opens its air space and transatlantic flights resume from Dublin Airport. A small section off the south coast remains closed.
A fire breaks out in the upper floors of a hotel and apartment block building in Ballymun, Ireland, near Dublin Airport. The fire affects the top seven floors of the building and two floors of apartments, without casualties.
The volcanic ash cloud above Europe causes a third day of disruption to air travel, leaving millions of passengers stranded unable to reach their destinations. Officials warn that airspace could remain shut for several more days.
Ryanair, Europe's largest low-cost carrier, cancels all flights to and from Ireland, Britain, Denmark, Finland, Norway, Sweden, Belgium, the Netherlands, northern France, northern Germany, Poland and the Baltic states until 12:00 GMT on Monday: CEO Michael O'Leary calls the situation "unprecedented".