WIKILEAKS supporters apparently attacked the websites of the Swedish prosecutor and MasterCard in retaliation over moves made by them against Julian Assange, who has published secret US diplomatic cables that have angered and embarrassed Washington.

The British government feared that Libya would take "harsh and immediate action" against its interests if the Lockerbie bomber died in prison, according to leaked US diplomatic cables.

Pressure mounted today on WikiLeaks after the online payment agency PayPal cut off the account it uses to gather donations from supporters.