Rescuers are searching for survivors in the central Russian city of Magnitogorsk, where an explosion devastated a block of flats, killing at least four people. Officials in the city, in the Urals region, say a gas leak caused the blast. About 40 people are missing. President Vladimir Putin has arrived in the city to assess the situation. The building was …

Russian rescuers in the city of Magnitogorsk have pulled an 11-month-old baby from the rubble of a block of flats hit by an explosion on Monday. The boy, named Ivan, has serious frostbite, a head injury and leg fractures, and will be sent for treatment in Moscow. He is said to be in a “very serious” condition. Ivan was partially …