One of highest youth suicide rates in the world is contributing to Russia’s demographic decline.

According to a recent UN report, Russia has one of the highest rates of teen suicide in the world.

The official figure is three-times higher than the global average, but analysts say the real picture may be worse as many cases go unreported.

The levels are one factor affecting Russia’s demographic decline – described by Vladimir Putin, the prime minister, as a major “threat to national security”.

Al Jazeera’s Neave Barker reports from Saint Petersburg.