Russia, Dec 31: A suspect behind the Saint Petersburg bomb attack was arrested by Russian officers on Saturday.
The blast which took place in a supermarket wounded 18 people.
"The suspect is being questioned," a spokeswoman for the Russian Investigative Committee, Svetlana Petrenko, said.
"The organiser and direct perpetrator who triggered an improvised explosive device on December 27 in a supermarket in Saint Petersburg was arrested during a special operation by the FSB", the security services added, according to Russian news agency.
According to news agencies, a source close to the case said that the suspect was 35-year-old Dmitry Lukyanenko, a resident of Saint Petersburg and member of the nationalist "New Age" movement.