Tony Blair today said London's transport system would be running as soon as possible and appealed to people to "react calmly" after a series of incidents in the capital today.
Mr Blair said he would press on with meetings this afternoon including talks with intelligence and police chiefs discussing the aftermath of the July 7th terror attacks.
He said he had just spoken with Metropolitan Police Commissioner Sir Ian Blair, adding "his hope is that things can get back to normal again as quickly as possible".
Mr Blair, speaking in No 10 alongside Australian Prime Minister John Howard, who was in London for routine talks, said: "I heard about this as I was in the middle of the lunch meeting.
"I have just spoken to the Metropolitan Police Commissioner and his hope is that things can get back to normal as soon as quickly as possible.
"We can't minimise incidents such as these, all I would like to say is this - we know why these things are done, to frighten people and make them anxious and worried.
"Fortunately in this instance there appears to have been no casualties. We have just got to react calmly," Mr Blair said.