Romanian media signaled about 30 cases of "electoral tourism" - a practice by which voters are taken from one place to another to balance votes according to party interests - in European Parliament elections on Sunday, quoting alerts from political parties and NGOs.

Romanian Interior minister Dan Nica said that police have checked over 6,800 people of suspected involvement in electoral tourism incidents by 1.00 p.m., with 35 criminal cases opened.

The Pro Democratia Association, a local NGO, warned that the "electoral tourism" issue was mainly affecting rural areas where many complaints came from.