The U.S. Department of State warns U.S. citizens not to travel to Serbia and Montenegro because of the potential for rapid changes in the security situation there, and the threat of potential repercussions from the ongoing conflict in Bosnia and Herzegovina. Belgrade airport is open for civilian passengers but cargo is still prohibited. There may be long delays at the border when entering the country by car or bus. Internal air travel is possible, but schedules are unreliable.
Trains continue to operate, but are often overbooked, unreliable, and unsafe.
There have been incidents of assaults and robberies on the trains. Travelers should be aware that essential supplies, including basic food items and medicines, often are unavailable, and that traveler's checks and credit cards are not valid. Rapid changes in the value of local currency occur as hyperinflation continues and travelers may experience power outages and and heating irregularities. Although automobile travel is generally possible, there is a shortage of spare parts and gasoline, and it is wise to make certain that sufficient fuel is available before undertaking such travel. Travel after dark on many roads is hazardous because of the presence of slow, poorly marked vehicles, horse-drawn carts, and worn or nonexistent median lines and shoulder markings.