Egypt has denounced the Monday bombing in Russia's second largest city St Petersburg, which killed at least 10 people and injured dozens in an explosion that tore through a train carriage in the underground metro system.
In a statement on its official Facebook page, the Egyptian foreign ministry stressed Cairo's solidarity with the Russian government and people.
"There is no doubt that the recurrence of terrorist operations proves that no state is immune to terrorist attacks, and this shows the need for all to unite to put an end to this unprecedented wave of terrorism," the statement read.
Russian President Vladimir Putin, who was in St. Petersburg for a meeting with Belarusian leader Alexander Lukashenko when the bombing took place, said that all possible reasons for the blast are being considered, including terrorism, media outlets reported.
Interfax news agency quoted an unnamed source as saying that the blast was caused by a bomb filled with shrapnel, according to AP.