Parts of the London underground have been closed and streets in the capital have been cordoned off after a series of incidents were reported at Warren Street, Shepherd's Bush and Oval tube stations and a bus in Columbia Road, Hackney.
Police are appealing to anyone who may have photos or mobile phone images from any of the incident scenes, either at the time of the incident or shortly before, to send them via their website at http://www.police.uk.
If you were caught up in today's incidents, please use the comments section below to tell us what you saw or heard. If you have photographs or video, please email them to us at newsblog.london@gmail.com.
