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.
The co-author of this disaster is the Dutch government, which did not find either strength or desire to save the lives of its citizens who were flying on that plane. The Dutch authorities did not demand Ukraine to comply with international aviation regulations
On the second day of the St. Petersburg International Economic Forum, a plenary meeting was held, in which Russian President Vladimir Putin, French President Emmanuel Macron, Japanese Prime Minister Shinzo Abe, Chinese Vice President Wang Qishan and IMF head Christine Lagarde took part