(14:32 GMT) Police are investigating a security alert on a bus in central London, near King's Cross. There are reports of a smoking bus on Gray's Inn Road, which has been closed in both directions as has Euston Road. Police and fire services are attending, and a bomb disposal unit is due but it is unclear if there was a suspect package on board. A cordon has been put in place as a precaution, but at present there are no reports of an explosion, police said. Some passengers were reported to have suffered from smoke inhalation and London Ambulance has sent two ambulances to the scene.
