BITSCH, Switzerland, July 18 (Reuters) - Swiss firefighters on Tuesday were battling a forest fire that has forced more than 200 people to evacuate, and authorities warned winds were making the blaze difficult to contain. The fire broke out on Monday on the forested flank of a mountain in Bitsch in the Valais canton near the Italian border. An helicopter carries water to a wildfire on the flank of a mountain in Bitsch near Brig, Switzerland, July 18, 2023. REUTERS/Denis BalibouseThe situation could deteriorate further if winds grow stronger, said Adrienne Bellwald, spokesperson for the cantonal police. Its Federal Office for the Environment has warned forest fires could become more frequent, especially in summer, due to an increase in hot, dry weather caused by climate change.

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Persons: Mario Schaller, Denis Balibouse, Adrienne Bellwald, Noele Illien, Emma Farge, Gabrielle Tétrault, Farber, Janet Lawrence, Conor Humphries, Bernadette Baum Organizations: Helicopters, REUTERS, Federal Office, Environment, Reuters, World Meteorological Organization, Thomson Locations: Switzerland, Bitsch, Valais, Brig, Europe, Asia, United States