Flights from Irish airports have resumed after a six hour closure due to another volcanic ash cloud from Iceland.
The Irish Aviation Authority (IAA) cleared the airports to resume full services, but warned there may be more disruption ahead.
It said: “Our decision to close earlier today was based solely on the safety risks to crews and passengers as a result of the drift south of the volcanic ash cloud caused by the north easterly winds.
“The situation will be reviewed as the week goes on. Winds are forecast to continue coming from a Northerly direction for the next few days and this could lead to further problems.”
The IAA will issue a further update at 8pm today.
The new flight ban also affected Scotland’s Outer Hebrides, but the Civil Aviation Authority (CAA) said this would also be lifted at 1pm today.
The ban on flights to and from Ireland did not affect aircraft flying over the country to and from the UK and Europe.
Almost 440 flights had been due to depart and fly in to Dublin Airport throughout the day, with more scheduled from Shannon, Galway, Sligo, Knock, Donegal, Cork and Kerry.
Ryanair cancelled all its flights to and from the Republic of Ireland, Belfast and Derry City from 6am to 2pm, with Aer Lingus suspending all Irish services to the UK and Europe until 1pm.
However all but one of its transatlantic services to the US are operating, with some delays.
More news and analysis to follow.