A motorist who saw the aftermath of this morning’s fatal accident at Bow roundabout has explained how he shouted at bystanders to give her first aid.

Paul King was on the roundabout after missing his exit when he saw the female cyclist lying in the middle of the road.

He said: “I noticed the accident just after it happened and saw the lady on the floor. I screamed at these two people who were putting up barriers, to do first aid. They said she’s gone already.

”I feel so sorry for her family because I have been through so much myself. I feel gutted for the family.”

Mr King’s father Ian Tomlinson, died during the G20 protest in 2009 when he was struck by a baton and pushed to the ground. An inquest ruled that he was killed unlawfully although Pc Simon Harwood was cleared of manslaughter at Southwark Crown Court in 2012.

He said London’s roads have become increasingly unsafe for cyclists and called on the London Mayor Boris Johnson to tackle the problem.

Emergency services were called to the scene at around 8.45am following the collision between the cyclist and a lorry. The cyclist, a woman in her mid 20s, was pronounced dead at the scene.

She has not been formally identified yet. A post-mortem examination will be held in due course.

Police believe the lorry was travelling west along the A11, entering the roundabout to turn south towards the Blackwall Tunnel.

The cyclist is believed to have been travelling in the same direction when the collision occurred.

The male driver of the lorry stopped at the scene. There have been no arrests.

Witnesses are asked to contact the appeal line on 0208 597 4747.