Three people have been killed and at least one more injured after a taxi blew up in St Petersburg. A spokesman for Russia’s emergencies ministry told the BBC that the taxi exploded during rush-hour just outside the Udelnaya underground station in the north of St Petersburg. That station is not far from Zenit’s training ground and it is not known who the blast was targeted at. Russian officials say the blast could have been caused by a hand grenade. A criminal investigation is now under way and I will bring you more coverage as it becomes available. Some reports are suggesting that the government may ask UEFA to postpone the game until it completes its investigation of the incident.