A man needed extensive plastic surgery after his hand was slashed in a Leytonstone robbery.
Detectives have released an image of a man they want to speak to in connection with the incident.
On the evening of October 1 2022, the victim, a man in his 30s, was walking home under the Green Man Roundabout whilst on his phone.
He was approached from behind and a tussle took place for his phone, police said, resulting in his hand being slashed and his phone being taken.
The victim made his way home and was taken to hospital by a neighbour.
Police said the attacker is described as a white male, with dark-coloured curly hair and of athletic build.
Det Con Aaron Barnes-Weston, of the North East Command Unit, said: "As a result of this incident a man, who was only walking home, has been attacked and robbed.
"The injuries to his hand were so significant and so deep they cut his tendons.
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"We need to find the person responsible and I am asking the public to help.
"If you want, you can call Crimestoppers who will never ask your name, but if you do have any information please do make that call."
Any witnesses or anyone with any information is asked to call police on 101 or contact via Twitter @MetCC. Please quote CAD2453/12JAN.
To give information anonymously contact Crimestoppers on 0800 555 111 or at crimestoppers-uk.org/.
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