The Head of State reported this on his Facebook page.
"I'm grateful to the Portuguese president for the invitation to visit the country. This is the first official visit of the Head of Ukraine for ten years. We gladly invite Marcelo Rebelo de Sousa to visit Ukraine in the near future and continue our fruitful dialogue," Poroshenko noted.
As Ukrinform reported, President of Ukraine Petro Poroshenko is on an official visit to Portugal on December 17-18.