A picture shows the damaged train carriage at Technological Institute metro station in Saint Petersburg on April 3, 2017. AFP / STR / ALTERNATIVE CROP
MOSCOW: Surveillance cameras in St Petersburg's metro system may have captured images of the person suspected of organising Monday's deadly train blast, Russian news agency Interfax quoted a source as saying.
"Images of the suspected organiser of the metro blast were captured on metro station cameras," the source said.
The explosive device may have been left in a briefcase in a metro train carriage, the source added.
