The Ukrainian presidential administration has denied President Petro Poroshenko had any secret meetings with Russia's Vladimir Putin.
"The president of Ukraine has had no bilateral meetings with the president of Russia since the moment the Minsk agreements were signed," Poroshenko's press service told Interfax-Ukraine.
Earlier, Russian presidential spokesman Dmitriy Peskov mentioned the contacts between the two presidents.
"Such meetings take place, we do not report on them," he said on the Acting Persons show on the Russian TV channel Rossiya 1.