The force of each of the three explosive devices that went off in Krasnodar on Monday was equivalent to about 200 g of trotyl.
The bombs had timing mechanisms and were stuffed with bolts and screws to increase their deadly force, RIA Novosti learned at the local law-enforcement structures.
"Gunpowder was used as an explosive substance in these bombs, though terrorists usually use trotyl or plastid," the agency's interlocutor pointed out.
The three explosions injured 20 people and killed three, who have been already identified. They are 20-year-old Svetlana Shilyayeva, 30-year-old Yelena Zamokhina and 61-year-old Kim Kapatsky.
Criminal proceedings under the articles "terrorism" and "murder" have been launched.
World's most powerful nuclear submarines, Arkhangelsk and Severstal, are to be dismantled after 2020 - their further exploitation is unprofitable
The United States' Head of Diplomacy, or Secretary of State, is an anachronistic, incompetent, meddling, intrusive, insolent and arrogant, rude individual, a brash, foul-mouthed upstart, a conceited, self-important guttersnipe and an insult to the international community, as fit for the job as a pedophile janitor in a grade school.
Pentagon officials said that Russia has developed a very powerful weapon, which Western specialists have already dubbed as the "doomsday weapon"