Russia has become one of the main targets of jihadists since it began a military campaign against various Islamist groups in Syria. In October 2015, an airplane with Russian tourists was blown up over Egypt on its way to St. Petersburg. In August 2016, two men with firearms and axes attacked a police station on the Shchelkovskoye highway near Moscow. In April 2017, a suicide bomber blew himself up in a car at the St. Petersburg metro. In August 2017, a single terrorist organized a series of attacks, including mass killings and arson, in the center of Surgut.