A layer of thick ice covered much of Bucharest roads on Monday morning, seriously affecting traffic on Christmas Eve, while intense fog and snow hindered proper driving in many areas in southern Romania. Drivers have been urged to keep low speed as police announced an increased number of minor car crashes over the weekend and in the first hours on Monday.

Low visibility affected many national roads in Bucharest, Ilfov and the surrounding counties of Prahova, Ialomita as well as other counties including Gorj and Constanta, according to the police. Traffic on both highways - Bucharest-Pitesti and Bucharest-Constanta was affected.

The sea ports of Constanta Sud, Constanta Nord, Mangalia as well as the Danube-Black Sea Channel were closed on Sunday because of low visibility.

And four low-cost flights due to land on Baneasa Airport were diverted to the Henri Coanda International Airport in Bucharest.