<div><br />''</div>''<div>Pressure mounted for Slovakia's Prime Minister and Interior Minister to resign, after the murder of a journalist who had been probing alleged corruption linked to the governing SMER-SD party.&nbsp;</div>''<div><br />''</div>''<div>The Justice Minister, who belongs to the coalition party Most-Hid, also accused Prime Minister Robert Fico of peddling conspiracy theories, in a sign of possible tension within the cabinet itself.</div>''<div><br />''</div>''<div>Journalist Jan Kubiak was killed as he was about to publish an explosive report on alleged corruption linked to the Italian mafia.</div>