A 22-year-old man has been arrested after police linked the stabbing of an Uber driver with a stalker following women in south-west London.
Detectives released CCTV images of a suspect they wanted to speak to and a member of the public called them.
Officers immediately began enquiries and shortly before 4.20am a male was held in Brixton on suspicion of committing grievous bodily harm, possession of an offensive weapon and public order offences. He remains in custody, the Metropolitan Police said on Friday.
A 35-year-old man was detained at the same location on suspicion of burglary in relation to an unrelated ongoing investigation.
Police were hunting a knifeman who has been stalking the streets around Clapham. One woman was approached by a man with a knife in Sisters Avenue, Clapham Junction at 4am on November 17 but he fled after she began to shout.
The second incident took place on Sumburgh Road, Balham at around 1.40am on November 19.
The man approached a female and grabbed her but she managed to wrestle free and run away.
An Uber driver was stabbed in the chest twice on Nightingale Lane, Clapham at just after midnight on November 23.
His condition is not life threatening or life changing and he has been released from hospital.
Detective Superintendent Dan O’Sullivan, from the South West Command Unit, said: “Firstly, I would like to thank the public for their assistance that led to this arrest. I know that many people will have been incredibly concerned about the details of these linked investigations.
"I want to reassure local residents that we are continuing to carry out extra reassurance patrols.
“I also want to be clear that our enquiries and our vigilance doesn’t end with this arrest. A team of dedicated detectives are continuing to carry out a thorough investigation. This man is currently in police custody and will be questioned by detectives.
“Help from the public is clearly vital to our investigations and I would again ask anyone who has any information about this investigation to get in touch immediately.”