Hungary's former prime minister, Viktor Orbán, has accused the judiciary of a politically motivated probe targeting his far-right Fidesz party.
The claims followed a raid on 21 July at a Budapest data centre hosting servers linked to Fidesz.
The Bács-Kiskun County Prosecutor's Office said the operation was part of an investigation into alleged irregularities at Hungary's state-run National Cultural Fund.
Investigators suspect the fund's decision-making body of unlawfully awarding 1,079 grants worth more than 17 billion forints (€47 million), in breach of funding rules.
But speaking outside Fidesz headquarters, Viktor Orbán said the corruption investigation had been used to justify the seizure of the party's servers.
