Poland and Russia are allowing some visa-free travel between Poland and the Russian exclave of Kaliningrad in an attempt to boost economic and social ties.
As of Friday, residents of Kaliningrad and northeastern parts of Poland no longer need a passport or visa, although they are required to have a special permit to cross.
Residents of the major Polish cities of Gdansk, Gdynia, Elblag and Olsztyn are included in the program.
Permits will cost 20 euros ($24) for those who have lived for at least three years on either side of the border.
(AP)