Hundreds of taxi drivers on Wednesday blocked one of the Croatian capital’s main boulevards with their cars to protest against the taxi-requesting app Uber.

They were demanding that the US-based ride-hailing service be banned in the country, citing what they see as illegal operations in Croatia for the last two years.

Taxi drivers blocking downtown #Zagreb with parked cars in protest against Uber</a> in <a href="https://twitter.com/hashtag/Croatia?src=hash">#Croatia</a>. <a href="https://twitter.com/hashtag/CroatiaToday?src=hash">#CroatiaToday</a> <a href="https://t.co/GapaghHfeC">pic.twitter.com/GapaghHfeC</a></p>— The Voice of Croatia (VoiceofCroatia) June 21, 2017

Their demands were debated in Croatian government on Wednesday in Zagreb and Prime Minister Andrej Plenkovic said: “We have concluded that transportation via Uber is against the current regulations in the Republic of Croatia.”

Uber issued a statement saying that the blocking of Zagreb streets “poses a threat to the citizens and infrastructure”.