To clear their debt. Its five oclock, our top story is that at least nine people are dead, after an explosion on the St Petersburg metro. Another 50 have been injured, according to russias National Anti terrorist committee, which also said a second device had been found and made safe. Officials said there was a single blast between two underground trains in St Petersburg, where the metro system remains shut down. President Vladimir Putin, who was in St Petersburg for a meeting with the leader of belarus, said the cause of the blast was unclear, but the russian Prime Minister Dymitry Medvedyev has now claimed it was a Terror Attack. Richard galpin reports. In the immediate aftermath, passengers turned to the dead and injured who have been laid out on the station platform. While others mill around the scene, smoke from the blast hanging above them. Its reported the explosion happened as the train was travelling between two stations. And this is the damage it caused at 2 40pm local time t