This is what we know...
Massive explosions at Buncesfield oil depot, nr Hemel Hempstead.
Shockwaves felt in Whitehall, Surrey and Hampshire.
Eyewitnesses heard rumbling noises.
I don't often get to ping the Terror List from Iraq, but this one just got to us.
Wonder if any of you can update us on what's happening.
At this hour, there's been a catastrophic explosion at the Buncesfield oil depot, IVO Hemel Hepstead, England, about 30 miles NW of London.
BBC and Sky News have reported secondary explosions and collateral damage to nearby buildings. Casualties have been mentioned, but no numbers reported.
What about the plane story from earlier? Is it possible planes were flown into the fuel tanks?