The European Union on Wednesday began the process of clawing back hundreds of millions of euros in funds meant to go Hungary after its ant-migrant government refused to pay a huge fine for breaking the bloc’s asylum rules.

In June, the EU’s top court ordered Hungary to pay 200 million euros ($223 million) for persistently depriving migrants of their right to apply for asylum. The court imposed an additional fine of 1 million euros for every day it failed to comply.

The European Court of Justice described Hungary’s actions as “an unprecedented and extremely serious infringement of EU law.” Hungarian Prime Minister Viktor Orbán slammed its ruling as “outrageous and unacceptable.”