Images of a murder suspect have been released by police.
CCTV cameras have captured three images of a man near Ilford Lane, Ilford, where Mariana Popa, 24, was stabbed to death on October 29.
He is described as dark skinned, with a full beard, wearing a light baggy top with a satchel across his chest.
Police believe he may also have been wearing a hat or cap at the time of the offence.
Miss Popa, a Romanian national, was attacked on the early hours of October 29 in Ilford Lane, near the junction with Loxford Lane.
A post-mortem indicated Ms Popa died due to shock and haemorrhage and stab wounds to the chest.
A 48-year-old man was arrested on October 29 on suspicion of murder, but later released with no further action.
A murder investigation is ongoing.
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