The fires in the Široki Brijeg area are being put out by fire-fighters and the local population.
The planes took off this morning from Zemunik air base near Zadar, taking water from a lake near Tomislavgrad, BiH.
The request for sending them came on Saturday from the authorities of the Western Herzegovina and Herzegovina-Neretva cantons.
Most fires in Herzegovina are difficult to put out due to the mountainous terrain.
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