Donald Trump's joint appearance with Polish President Andrzej Duda in the battleground state of Pennsylvania has been canceled, according to a source familiar with the Republican presidential candidate's plans.

The reasons for the cancelation were not specified. It is unknown if Republican presidential nominee Donald Trump and Polish President Andrzej Duda planned to meet elsewhere on the campaign trail.

Donald Trump's last-minute visit to Bucks County on Sunday is reportedly canceled for unknown reasons, according to the Associated Press.

Former President Donald Trump will not attend Mass at a Polish Catholic shrine in Bucks County alongside the Polish President Andrzej Duda, his campaign said.

The campaign’s scheduled stop at the National Shrine of Our Lady of Czestochowa in Doylestown has been canceled. The reason for the change is unclear.