Polish Prime Minister Donald Tusk said on February 27 he could not rule out widening a national ban on imports of Ukrainian grains to include other products if the European Union does not act to protect the bloc's markets. Tusk made the remarks during a visit to Prague as thousands of Polish farmers took to the streets of Warsaw carrying the national flag and blowing horns, escalating a protest against food imports from Ukraine and EU green rules. Farmers across Europe have been protesting new regulations in the EU's “Green Deal” and unfair competition from outside the EU, particularly Ukraine.