This morning, four tube lines were either suspended or delayed including the Central line which has been flooded by a burst water main.
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Several passers-by can be seen apparently reacting to the incident in the footage.
Victims ranging from age three to 60 will be remembered as part of six special hearings dedicated to those who lost their lives.
"I do not accept the allegation that I have brought the Labour Party into disrepute", said Livingstone.