In Greece, at least four people died and five more were injured when a passenger train derailed in northern Greece last night, railway company TRAINOSE said. The train was heading from Athens to the second-biggest city of Thessaloniki when it derailed in the town of Adendro, some 37 kilometers away. <br/><br/>The cause of the accident was not clear. The driver was in critical condition, TRAINOSE said. The agency reported about 100 passengers were on the train and some media said five carriages had derailed.<br/>