The Polish government on Saturday banned the import of Ukrainian grain in a bid to protect domestic farmers upset over the import of cheaper goods from their war-torn neighbor.

The Ministry of Agriculture announced that Poland’s Council of Ministers has authorized it to “issue relevant legal acts for the protection of the Polish agricultural market against destabilization,” including a temporary prohibition of imports of agricultural and food products from Ukraine, Poland’s PAP news agency reported.

Polish leaders face increasing pressure from farmers who are upset about cheap Ukrainian grain imports. A wave of protests from farmers prompted Minister of Agriculture and Rural Development, Henryk Kowalczky to resign earlier this month.