Unidentified persons blew up a freight train on a railroad in Dagestan, derailing 16 cars. Thirteen of the cars overturned. The train was on the way to the station of Derbent. The explosion occurred under the locomotive on the Achi-Izberbash railroad at 04:15 Moscow time. Nobody was hurt, a Makhachkala transport police source told Itar-Tass. Two weeks ago, unidentified attackers blew up a freight train on the same railroad section, overturning 14 cars. Sappers are working at the site. After they examine the area, investigators will begin their work at the site.