Udwin said the EC viewed the incident as a bilateral issue that must be solved peacefully, through dialogue.
She said Slovenia was the first to inform the EC about the incident which involved 12 Slovene nationals, including two members of parliament, after which the EC requested an investigation and asked Croatia to report its findings.
Udwin added the Croatian answer had already arrived but declined to comment on its content, reiterating this was a bilateral issue which the two sides must settle by themselves.
The incident has caused a real storm in Slovenia, which is in pre-election time. Ljubljana has said it will ask the EU next week to take action against Croatia and that it will raise this issue at an EU foreign ministers' meeting scheduled for October 11.
Slovene Prime Minister Anton Rop said yesterday Croatia should no longer count on Slovenia's support to its EU entry.
The state secretary at the Croatian Foreign Ministry, Hidajet Biscevic, countered by saying Croatia could not accept to have Ljubljana use the EU as a tool in the settlement of bilateral disputes.