A South Tyneside teacher living in St Petersburg has spoken of his sadness following an explosion in the Russian city which killed eleven people.
Russia's National Anti-Terrorist Committee said a blast hit a train between Sennaya Ploshchad and Tekhnologichesky Institut stations today.
An anti-terror probe has been launched, although other possible causes are also being investigated.
It is understood another explosive device was later found and made safe at a station nearby.
Paul Curry, from Hebburn, moved to the county five years ago where he works as a primary school teacher.
The 43-year-old was not involved in the incident, but as a regular user of the city's Metro system, has been left shaken by the tragedy.
He said: "I left the UK for a new challenge after teaching for many years in Yorkshire and have lived in Russia for five years .
"I moved to St Petersburg in January, having previously lived in Moscow and Tyumen in Siberia.
"I'm a teacher here and I use the Metro at least twice a week - everyone does - it's essential."
Mr Curry continued: "I didn't actually see anything directly as I was at work at the time, which is several miles from where the explosions occurred.
"But upon leaving work, you could feel a sombre atmosphere, even here in the suburbs.
"I feel terribly saddened, as St Petersburg is such a wonderful city and I've not experienced any hint of danger here until today.
"I use the Metro at weekends and occasionally through the week.
"But it makes me nervous for using the Metro again."