The Anonymous hackers group, which is against the Anti-Counterfeiting Trade Agreement (ACTA), last night attacked the website of the Croatian Ministry of Foreign and European Affairs, which is still unavailable.

The ministry spokesman Berislav Zivkovic told the media on Thursday morning that difficulties in accessing some contents were being dealt with.

The website says access is temporarily unavailable due to maintenance.

Zivkovic said Anonymous hacked into the website last night, leaving several messages against ACTA that were removed around 7.30am.

He said the adoption of ACTA was not in the foreign ministry's remit and that its adoption had not been initiated in Croatia yet.

One of the Anonymous messages said that "crashing the websites of the president, ZAMP (Croatian Composers Society) and other government websites is not an attempt to overthrow democracy, the president and the government... By doing this, we don't wish to harm anyone in any way but are voicing our dissatisfaction with ACTA. We are not hackers, we are citizens of all social classes and by doing this we are showing every aware Croatian citizen that there are still people like us fighting for a free Internet, free flow of information and independent journalism."

Anonymous said ACTA threatened user privacy, civil liberties, legality of business, innovation and free flow of information.

Last week, this hackers group attacked several times the websites of President Ivo Josipovic, ZAMP and the Croatian Music Institute.