Ljubljana - The Foreign Ministry said on Wednesday it had summoned Russian Ambassador Timur Eyvazov over Russia's recognition of independence of the eastern Ukrainian regions Donetsk and Luhansk.

Bogdan Batič, deputy political director at the ministry, informed the ambassador of Slovenia's resolute opposition to Russia's actions along the Ukrainian border, especially the unilateral recognition of independence of the two Ukrainian regions.

The ministry said this was a grave violation of international law and of the obligations that Russia had assumed with a number of agreements, including the Minsk agreements.

Batič reiterated Slovenia's support for Ukraine's independence, sovereignty and territorial integrity within its internationally recognised borders, and urged respect for the country's sovereignty and internationally recognised borders.

"Slovenia expects that further efforts will be directed towards searching for a diplomatic solution, and is making efforts towards this," the ministry added in a press release after the meeting with Eyvazov.

On Tuesday, it expressed strong opposition to Russian President Vladimir Putin's Monday decision to recognise independence of the two Ukrainian regions, with Minister Anže Logar saying that Russia had violated international law and international principles.

The ambassador was summoned a day before Prime Minister Janez Janša begins a two-day visit to Ukraine to meet his counterpart Denys Shmyhal and President Volodymyr Zelenskyy. On the occasion, Slovenia will also deliver material aid to Ukraine.