"We do not disclose [information] about the crossing of the border by third parties, as the law prohibits this. But in connection with speculation and requests from journalists about this, what I can say is that all border crossings were strictly in accordance with legislation, there were no violations or privileges in the border crossing and customs control procedures," a source told UNIAN.

Read alsoRussia employs against Ukraine same methods of hybrid war as century ago – PoroshenkoIn addition, the State Border Service noted that the president had crossed the border, using his own passport.

"It was a passport of a citizen of Ukraine with the respective name," the agency said, responding to a clarifying question whether the president used his own passport or cover identification documents when crossing the border.

However, Poroshenko's press secretary Svyatoslav Tsegolko did not respond to UNIAN requests for comment on border checks during Poroshenko's trip to the Maldives.

Earlier, the presidential press service reported that Poroshenko had spent the New Year eve at home, had stayed several days in Ivano-Frankivsk region and then had gone on a private trip to the Maldives.

As a Ukrainian investigative TV show, Schemes, exposed, Poroshenko reportedly took a secret, vastly expensive vacation in the Maldives on January 1-8, 2018. He and seven other passengers used a private plane.

Poroshenko and his companions might not have undergone border and customs checks when traveling, the sleuth journalists suggested. The president allegedly paid $500,000 for the seven-day vacation.