Tens of thousands of homes in north Dublin are being advised that they may be without water for 24 hours from 5am tomorrow.

The partial or total loss of water supply is being advised by both Dublin City Council and Fingal County Council, and is due to major upgrading work at the main reservoir at Ballycoolen.

The areas that may be without water extend from Howth, Kilbarrack, Artane and Darndale to Skerries, Swords, Balbriggan and Malahide.