Aljazeera is reporting:
Further confirmation of the Mossad having prior knowledge of the bombings was made by an Israeli news site which cites the spy agency's chief Meir Dagan, in an interview with the German newspaper Bild am Sonntag:
"The Mossad office in London received advance notice about the attacks, but only six minutes before the first blast. As a result, it was impossible to take any action to prevent the blasts."
What it means is open to speculuation, but one particular individual was warned:
Finance Minister Benjamin Netanyahu, in London for an economic conference, was warned by Scotland Yard "minutes" in advance of the bombings.