The 27-year-old man who collapsed and died after a woman was fatally stabbed was found to be in possession of an “unidentified” white powder.

Magdalena Welna, 23, was found in Valentines Road having been stabbed at around 5.30pm on Friday and was taken to hospital where she was pronounced dead on arrival.

Victor Banjo Ogundunmade from Newham was discovered 600 metres away in Auckland Road.

He was found topless in a residential driveway in possession of the powder a little before 7pm.

A post mortem on both bodies will be carried out within the next few days once results on the white substance have come back.

Police have confirmed the pair knew each other.

Officers are not looking for anyone else in connection with the murder of Ms Welna, a Polish national.

Anyone who witnessed anything suspicious or has information that may assist the investigation should call the incident room on 020 345 1570.

To remain anonymous, call Crimestoppers on 0800 555 111.