Hackers posted messages on the European Union's Kosovo mission official Web site claiming the bloc's police mission wants to return Kosovo to Serb rule, AP reported. Friday's attack on the Web site comes a day after a local court sentenced 20 ethnic Albanians to a month in prison for puncturing tires and smashing windows on some 24 vehicles of the EU mission, known as EULEX. Kosovo's ethnic Albanian leaders object to a EULEX deal with with Serbia's police to exchange information, fearing it undermines Kosovo's statehood. The hackers posted a message saying: «You can not sell our country back to Serbia...As we said Welcome, we can say Goodbye, too.»