European Union sanctions against Russia are ineffective and the Minsk agreement to end fighting in Ukraine is not working, the Czech Republic's most likely next prime minister Andrej Babiš was quoted as saying on Thursday.

The EU first imposed sanctions on Russia after it annexed Crimea from Ukraine in March 2014. France and Germany have also led efforts to broker an end to separatist fighting in eastern Ukraine through the Minsk agreement struck in 2015.

Andrej Babiš, a billionaire businessman whose ANO party has taken a double-digit poll lead ahead of an October 20-21 election, told financial daily Hospodarske Noviny that Russia was the aggressor but that sanctions had not changed anything. Forbes referred to him as "the Czech Republic's version of Donald Trump" earlier this year. 

"Sanctions... have not forced Russia to leave Crimea. And the Minsk deal is not working. It is a question of what to do next," Andrej Babiš said.

The Czech Social Democrat-led government, in which ANO is a junior party, has supported the EU's sanctions.

Sanctions... have not forced Russia to leave Crimea. And the Minsk deal is not working. It is a question of what to do next

The 28-member EU has continued to maintain unity over the measures against Moscow despite reluctance in some European countries which have important trade ties with Russia.

Slovak Prime Minister Robert Fico has said sanctions harm both the EU and Russia but that he respected the bloc's unity on the issue. 

Babis, who has also been a critic of the euro zone, is likely to take a more active role in foreign policy if he becomes prime minister.

He told the newspaper that while foreign policy is mostly led by the Czech foreign ministry in the current government, he believed the prime minister should instead be out front. 

Hungary has also promoted scrapping sanctions.