Citizens of Montenegro can no longer travel to Serbia with old ID cards, Air Montenegro announced.
They reminded that the validity period for old ID cards expired on Wednesday and that a new electronic ID card or a valid passport is now required to travel to Serbia.
"Passengers planning a trip to Belgrade should check their travel documents in advance to avoid inconvenience at the border crossing," Air Montenegro said in a post on social media.
The company asked passengers to take this information into account when planning their trip.
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