Police Chief Sir Ian Blair releases statement
“We know that we have four explosions, or attempts at explosions, but it’s still pretty unclear as to what’s happened.
“There’s certainly a scene at Oval Underground station, there’s a scene at Warren Street Station, there’s a scene at Shepherd’s Bush which is on the Underground but is actually above ground, and there’s a scene on a Number 26 bus at Hackney, near Columbia Road which I think is near Bethnal Green.
“At the moment the casualty numbers appear to be very low in the explosions, the bombs appear to be smaller than on the last occasion.
“But we don’t know the implications of all this yet and we’re going to have to examine the scene very carefully.
“I’ve got a couple of messages that I really need to give. Firstly obviously the transport system is going to shut down for a short while, while we work out what’s happening.
“So it’s very important that Londoners stay where they are. The second announcement is we will make a second announcement about what the travel implications are, but what we don’t want is lots of people going into railway stations.
“The trains as far as I know are still running. But it’s just stay where you are, go about your normal business, again the plan is there, you’ve seen it happen before, it’s rehearsed, the emergency services are getting control of a very confused scene.
“Clearly this is a very serious incident and what I’m going to do now is I’m going off to Cobra to meet with the Home Secretary and others to see where we go from here.”