Members of the public who intervened to help were branded ‘heroes’ (Picture: REX)

A man has been arrested following a triple stabbing in central London which saw members of the public try to foil a phone robbery.

The 25-year-old was detained in Islington, north London this morning, following the incident in Bishopsgate last Thursday.

Witnesses said they watched a group of two or three masked knifemen attacking a pedestrian just before 10am.

Members of the public, later described as ‘heroes’ by one passerby, tried to stop the attackers.

The victims needed hospital treatment but did not suffer life-threatening injuries.

Police say the arrested man is suspected of conspiracy to commit robbery, grievous bodily harm with intent and possession of an offensive weapon.

Temporary Detective Chief Inspector Colin Bishop, of City of London Police major crime team, said the man was arrested by detectives investigating ‘a number of serious offences connected with the attempted robbery and knife attack’.

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The force previously said the incident was not being treated as terror-related.

Charlotte Wright, 26, an administrator from Colchester who works near the scene, said: ‘I feel a bit apprehensive and scared coming out to get my lunch, but also pretty secure and safe.

‘I know London is a very busy city and I know that if anything were to happen, unfortunately like the guys that stepped in during this incident, there are heroes willing to do that.’

Detectives are still appealing for witnesses to come forward.

Anyone with information is asked to report it via the Major Incident Public Portal or to contact Crimestoppers anonymously on 0800 555 111.

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The 25-year-old is accused of a number of serious offences.