Seven separate bombs were detonated by terrorists in the London subway and on city buses, Reuters reports. An unknown number of injured and at least two dead.
It's not clear who's responsible yet, although the informed opinion is that it was Al Qaida and the attacks were timed to coincide with the opening of the G8 meeting Scotland today.
It will be curious to see what the British response to this is. After the Madrid train bombings last year, the Spanish reaction was to cower, but I think the Brits may be made of sterner stuff than that -- recall "The Blitz" during World War II and the more recent IRA bombings.
I also wonder how this will affect London's plans for the 2012 Olympics, announced only yesterday.
Update: 9:16 a.m., CBS radio now reporting 40 dead, with Al Qaida claiming "credit."