Police detained the man, 22, just before 4.20am on Friday morning in Brixton, on suspicion of committing grievous bodily harm, possession of an offensive weapon and public order offences after a number of women were followed.

The arrest came after a member of the public raised the alarm following appeals from the police.

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 don'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."

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Police said there were five incidents officers had connected with the same person - including three in the space of five hours in the early hours of Thursday morning.

The offences included an Uber driver being stabbed at 12.20am in Clapham, putting them in hospital with non-life threatening injuries.

The 22-year-old remains in custody.