The two men, father and son, were arrested while allegedly preparing to blow up a railway bridge over the Samara River. According to the FSB, he offered his services free of charge for sabotage operations in Russia and, upon returning home, recruited his father. Video released by the agency showed police officers describing how the younger suspect attempted to stab himself during his arrest. Earlier this month, a deadly explosion in Orel Region killed two people during the inspection of mined railway tracks. In May, two railway bridges in Bryansk and Kursk Regions were also blown up during Ukrainian attacks, leaving seven people dead and more than 100 injured.