Statement from Ken Livingstone, Mayor of LondonAs he took the Tube to work this morning Ken Livingstone said:

"The emergency response last Thursday and since has been outstanding. I want to recognise the contribution made by the city's transport workers.

"The Tube staff were the first people into those awful situations underground. The calm efficiency with which they evacuated the trains saved many lives. They then worked miracles, with their colleagues on the buses, to bring most of the network back into service within 24 hours.

"Along with the emergency services and medical teams, they have earned the gratitude and respect of every Londoner."