The following is a translation from an islamist website linked with Al-Queda found via the linked blog.

Jamaat al-Tandheem Al-Sierri (secret organization group)
Organization of Qaeda't al-Jihad in Europe

In the name of God the most merciful...

Rejoice the nation of Islam, rejoice nation of Arabs, the time of revenge has come for the crusaders' Zionist British government.

As retaliation for the massacres which the British commit in Iraq and Afghanistan, the mujahideen have successfully done it this time in London.

And this is Britain now burning from fear and panic from the north to the south, from the east to the west.

We have warned the brutish governments and British nation many times.

And here we are, we have done what we have promised. We have done a military operation after heavy work and planning, which the mujahideen have done, and it has taken a long time to ensure the success of this operation.

And we still warn the government of Denmark and Italy, all the crusader governments, that they will have the same punishment if they do not pull their forces out of Iraq and Afghanistan.

So beware.

Thursday 7/7/2005
Jamaat al-Tandheem Al-Sierri (secret organization group)
Organization of al Qaeda't al-Jihad in Europe.