Boyle, Ballaghaderreen and Arigna are some of the worst-affected areas where thousands of customers are still waiting for power to return.

ESB crews are working hard this afternoon to restore power to properties across the region following Storm Isha.

The precise cause of the explosion is still being investigated.

Power has been restored to the vast majority of homes and businesses but some customers are still feeling the impact of Monday's storm.

Several hundred people in Longford and Roscommon remain without power this evening, with ESB crews set to restore remaining supplies within the next number of hours.

ESB crews are still working to restore electricity to homes and businesses this morning.

Nationally, Storm Debi has resulted in at least 100,000, farms and businesses without electricity.

The ESB powercheck is currently down so customers aren't able to check when their electricity will return.