"The Slovenian government has been informed of the talks and I expect Sekolec and Drenik to assume responsibility for that," he said.
The talks were disclosed by Croatia's Vecernji List daily.
Speaking about a possible outcome of this diplomatic scandal, Cerar said he and his cabinet advocated an unbiased and independent border arbitration and that in future too he would "do everything for the tribunal to have this orientation."
Yesterday, after the Vecernji List article, Cerar said he would not comment until the arbitration ruling but that "this was obviously an attempt to influence the ruling" on Croatia's part.
Cerar also commented on some opinions in Slovenia that the newspaper obtained its material from Croatian intelligence. "It is outrageous that someone connected to the Croatian side is using espionage methods."
Former Slovenian foreign minister Dimitrij Rupel said on Wednesday the scandal was a disgrace for Slovenia. "Everyone is wiretapping everyone, one shouldn't be naive," he said, adding that Slovenia's intelligence agency SOVA should be reformed because it did not provide Sekolec and Drenik with appropriate counter-intelligence protection.
In the wake of the criticism against SOVA, the parliamentary committee on secret services was convened for an urgent meeting later today.