Talks with Kolinda Grabar-Kitarović, Filip Vujanović and Gjorge Ivanov, respectively, focused on regional cooperation.

Pahor hosted an informal dinner for leaders of the countries included in the Brdo Process of cooperation in the Western Balkans on the eve of the two-day conference, which started today.

Apart from the three presidents he met separately today, the dinner also featured Chairman of Presidency of Bosnia-Herzegovina Mladen Ivanić and Kosovo President Atifete Jahjaga.

Serbian President Tomislav Nikolić and Albanian President Bujar Nishani have failed to attend.

Pahor believes the talks on the margins of the Summit100 are an opportunity for rebuilding trust among leaders from the region.

He told TV Slovenija last night it was crucial that "the majority of the leaders responded to the informal invitation to the dinner". Howeverm, he said the absence of the Serbian and Albanian presidents was no cause for concern.

The president's office said trust between the leaders in the region had been eroded lately against the backdrop of the deterioration of the political situation, in particular in Macedonia, with the meeting intended to build trust.

This is why he believes the absence of Nikolić and Nishani are not a reason for concern.

"Also, I will be paying a very working visit to President Nikolić on Wednesday, given that all [leaders of countries included in the Brdo process] confirmed attendance for the 7 June summit to be held in Montenegro," Pahor added in a reference to the upcoming meeting of Brdo Process countries.

Pahor, Grabar-Kitarović, Ivanić, Ivanov, Jahjaga and Vujanović also took a stroll around the old town of near-by Piran this morning and were received by Mayor Peter Bossman in the central Tartini Square.

Mayor Bossman highlighted the importance of the presidents' visit, noting that Piran was a multicultural municipality cooperating well with Croatia, Bosnia-Herzegovina and some Serbian municipalities.

In the afternoon, the presidents will take part in a panel of leaders of the Brdo Process at Summit100, a major meeting of businessmen and decision-makers from the region.

An initiative launched by Pahor in 2010, the Brdo Process seeks to promote political and economic stability of the region and support the region's EU and NATO aspirations.Borut Pahor