Reuters - PARIS, Nov 5 (Reuters) - A worker was killed in France's northwest region of Brittany while repairing damage to the electricity network caused by Storm Ciaran, which has claimed at least two other lives in the country.

The exact circumstances of the accident are not yet known, energy distribution network operator Enedis said in a statement.

On Sunday morning, 297,000 households in France were without electricity due to Storm Ciaran and Storm Domingos, Enedis said.

Storm Ciaran was driven by a powerful jet stream that swept in from the Atlantic, unleashing heavy rain and furious winds that have caused heavy flooding in several countries in western Europe. Storm Domingos approached France over the weekend.

"My condolences to their family, close ones and all their colleagues touched by this drama. The energy sector is in mourning," Agnes Pannier-Runacher, France's energy minister, said in a post on social media platform X on Sunday.

The worker was sent as back up from the Midi-Pyrenees region, the minister said, and was one of 3,400 Enedis staff who have been mobilised to deal with the damage caused by the storms. (Reporting by Layli Foroudi; Editing by Conor Humphries)