A group of experts is examining a train arrived from Dagestan (a Russia's autonomous republic, neighboring to Chechnya) to a railway station in Mytishi (Moscow suburb). The day before the train was inspected with specially trained dogs and one of the dogs gave an alarm signal of the possible presence of explosives. Tree wagons were driven away to another siding. The preliminary check gave no results. But gas analyzing devices showed there is an explosive. The experts are inspecting the wagons again, Lentaa.ru reports. According to the train invoice, there are 2 thousand of 50-kg sacks with raw materials for polyethylene manufacturing.