Archbishop Paolo Pezzi of Moscow has described Monday's bombing of a train in St Petersburg as "a villainous terrorist act".
Fourteen people died when a bomb exploded on the train as it travelled between two underground stations. A further 49 people were injured in the blast.
According to reports, security services in Kyrgyzstan have named the bomber as Akbarzhon Jalilov, who was born in 1995 and was a native of Kyrgyzstan who obtained Russian citizenship.
Archbishop Pezzi offered his prayers and condolences following the bombing, National Catholic Register reports.
