Update: The BBC have a log on the attacks where they are putting the latest news.
A doctor tells Reuters there are at least 90 casualties at Aldgate station.
1049 Police say there are serious casualties, but no deaths are confirmed, Associated Press reports
Marcus adds: The BBC is reporting the first two deaths.
Gene adds: My thoughts and my solidarity are with everyone in London and the UK. Stay strong.
Harry adds: Here is Tony Blair’s reaction:
“It is important that those engaged in terrorism realise that our determination to defend our values and our way of life is greater than their determination to cause death and destruction to innocent people in a desire to impose extremism on the world,” he said.
“Whatever they do, it is our determination that they will never succeed in destroying what we hold dear in this country and in other civilised nations throughout the world.”
And London mayor Ken Livingstone’s statement.
Here is a statement by a group claiming responsibility.
Update: Paul Anderson is right: The outrages in London are the work of enemies of humanity. There should be massive demonstrations throughout Britain this weekend to show our solidarity against them.
Update: Media now saying at least 33 people have been killed.
Update: The Emergency hotline: 0870 1566 344
More: Here is the travel and emergency advice for those of you in London.
Gene adds: For the especially strong of stomach, here’s Gilad Atzmon’s reaction (from the disgusting Counterpunch website).