The number of people who have died after a train derailed in Moscow has reached 16.
Emergency services have been involved in a rescue operation in a metro tunnel after an underground train derailed between two stations during the morning rush hour.
Russia's investigative committee said it was looking into the causes of the incident.
More top news
The Facebook founder revealed the plan as he and wife Priscilla Chan announced the birth of their baby daughter, Max.
At least 300 people are actively promoting and recruiting for the terror group from within the United States, academics have found.
Hollywood film director and actor Steven Seagal has been asked to train Serbian special forces in martial arts.