Fox News had early reports of additional bomb scares in the London Underground. Early reports indicate one exploded bomb underground and reportedly the discovery of an unexploded bomb, which would be a real breakthrough.

More later. This situation will be reported on all day.

UPDATE: Here's a link to the Yahoo news coverage page. It doesn't look like there are any casualties. It's just really speculation at this point.
- posted by Base10 @ 2:21 PM