No arrests have been made
The 19-year-old was knifed in Oxlow Lane shortly before 4.05pm on Monday, 26 July.
He was rushed to hospital with an upper thigh wound and his condition has been confirmed as not life-threatening.
No arrests have been made and officers are investigating the incident.
Any witnesses or anyone with information is asked to call police on 101 quoting CAD 4617/26 July.
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Tags: Dagenham, Barking and Dagenham, Stabbing