President of Poland Andrzej Duda will pay an official visit to Ukraine on Wednesday, December 13, despite the latest incident, his chancellery has confirmed.

Pawel Mucha, the deputy head of the Polish president's chancellery, said on Radio Poland on Monday that "despite various incidents," Duda would visit Ukraine on Wednesday.

"As far as I know, he will go [to Ukraine]. If there are any changes, we will inform the public," he said.

Earlier, the Ministry of Foreign Affairs of Poland confirmed that in the early hours of December 10, a Polish bus was damaged near the west Ukrainian city of Lviv as a result of a blast of an explosive device. The department was concerned over "this new anti-Polish incident in Ukraine."

Ukrainian Foreign Minister Pavlo Klimkin also condemned this incident. In his opinion, this was an act of provocation aimed at disrupting the Polish president's visit to Ukraine.

Duda is to visit the east Ukrainian city of Kharkov on Wednesday, December 13, where he is scheduled to meet with Ukrainian President Petro Poroshenko. Security policy in the context of the situation in eastern Ukraine tops the agenda of the talks. Duda also plans to meet with members of the OSCE Special Monitoring Mission to Ukraine and UNDP representatives, as well as honor the memory of Polish soldiers killed by the Soviet NKVD and buried in Kharkiv's cemetery of victims of totalitarianism.