British Transport Police have released CCTV images of a man and woman it said may have information which can help the investigation.
Anyone who recognises them or has information is being urged to contact BTP by texting 61016 or calling 0800 40 50 40 quoting reference 2200079033. Alternatively, call Crimestoppers anonymously on 0800 555 111.
In February, police launched a hate crime investigation after a man tried to tear a woman’s headscarf from her head on the DLR in east London.
Haringey, the borough that South Tottenham sits within, had 68 racist hate crimes reported in August, above the average of 60, according to the Mayor of London’s hate crime dashboard.
Hate crimes across London rose almost three per cent in the past 12 months, Metropolitan Police statistics show. 25,890 offences were reported between August 2021 and 2022 - that’s a rate of 2.9 hate crime offences per 1,000 people.