A North London doctor who stopped during her commute home from work to treat a motorcyclist who had been thrown from his bike has spoken of how her own bicycle was stolen by an opportunist thief.

The incident happened at the Archway end of Holloway Road during last Friday’s evening rush hour as Jennifer Perry, aged 26, headed home to Angel from her work as a psychiatrist with Barnet and Edgware mental health trust, reports the London Evening Standard.

"The motorcyclist had come off his bike and was lying in the road with a few people standing round," explained Doctor Perry, who had trained as a medical doctor.

"There was a car parked blocking the road to stop the traffic,” she continued.

"I quickly rushed over to see if he was okay. My bike was resting by my leg while I was checking on the motorcyclist. I suddenly felt it move and looked round and saw a boy making off with it. He was so quick, I tried to chase but I would never have caught him."

Dr Perry told the Standard that she had only bought the £400 bicycle two months ago.

"I stopped to help and for someone to take advantage of that in such a way is upsetting. You have to wonder what the world is coming to."

The newspaper added that the motorcyclist, who is thought to have received minor injuries in the incident, was taken to hospital in an ambulance.