New research shows about a quarter of animals living in rivers, lakes and other freshwater sources are threatened with ...

Another Croatian bridge, this time over the Sava river, could be on the horizon. It seems that there's a need for more nationwide.

Serbian Orthodox worshippers jump into the cold water of the Sava river in Belgrade. In this picture, a woman takes a dip in the Russian city of Omsk, where temperatures have dropped below -10C (14F).

River gulls stand on a rope that ties a raft restaurant during a sunny winter's day at the bank of the Sava river in Belgrade ...

Separately, police detained two activists in Belgrade who were protesting against plans to demolish a Second World War-era bridge that carries trams as well as vehicle traffic over the Sava river ...

"I would very much like to think that I am becoming an honorary Serb. I have swam in the River Sava, I now put ajvar on everything and I am a great fan of ćevapi. And of course I am working very ...