A fire broke out on Thursday for the second time recently in a wheat field in Diyala province.
The fire broke out in a field of wheat at the outskirts of the Sa'diyah area northeast of Diyala, a local source said.
The source did not name a perpetrator.
The fire has destroyed nearly 10 dunums but has been controlled.
A number of ISIS elements earlier set fire to fields of wheat and barley in Nineveh's Makhmour, as owners of the fields refused to pay royalties.
The armed militias of ISIS are roaming freely in the land that separate the positions of the Peshmerga forces and the Iraqi army, govern this area, impose royalties on residents in the region and punish those who refrain from paying, a security source said.
ISIS imposed $5,000 on the owners of the fields, in addition to 15 to 20 percent of the crop, according to the source.
The farmers have lost what is equivalent to seven months of efforts, the source added.