Police in Dnipro, Dnipropetrovsk region, are checking eight reports that bombs have been placed at polling stations in the city. No explosive objects have been found in the city’s metro, National Police Spokesman Yaroslav Trakalo has said.

"Checks of the city's metro stations did not turn up any explosive devices. Criminal proceedings have been opened under Part 1 of Article 295 of Ukraine's Criminal Code (making false statements about the threat to the safety of citizens)," he said on Sunday.

Trakalo said the message that an explosive device had been laid at one of the metro stations in the city was reported to the police at 12:30. Explosives, dog handlers and the investigators team worked at the site.

"During the survey of the station and the territory adjacent to the station, no explosive objects were identified," he said.

Measures are being taken to establish the identity of the person who left a false message.

Trakalo said law enforcement officers are also checking eight reports of alleged bombs at polling stations. Dog handlers and bomb experts are working at the sites.

Turnout in Dnipropetrovsk region during the first round of voting in the presidential election as of 15:00 on Sunday exceeds 47%.