Police are extremely concerned for the welfare of Jamshid Safaripoor who went missing on Monday evening.
Jamshid, aged 34, was last seen at St Thomas' Hospital at about 8pm.
Officers fear that there may be a risk of self-harm.
Jamshid is believed to be of Iraqi origin, approximately five feet tall,
with dark hair.
He was wearing a black jacket with a white waistband and
a large Timberland logo running from top to bottom on the back and a
small Timberland logo on the left breast pocket.
He was also wearing a black T-shirt and khaki trousers.
Jamshid lives in the Tottenham area and has connections in Hackney.
Anyone seeing Jamshid is asked to contact police immediately by dialling