The victims, a 23-year-old and a 24-year-old man were verbally abused and then punched and kicked by two youths who were part of a group of 5/6 boys riding bikes.
The victims suffered minor injuries. They did not require medical attention.
This incident is believed to be homophobic.
On 13 June, two 16-year-year old male youths from E1 and E14 were arrested in connection with this incident and taken to an east London police station.
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Tencho Hristov ignored warnings and got trapped between barriers at Roydon in Essex.
The 6km bike track will include 130m of the South Circular near Kew Bridge.
The unfortunate officer was taken to a central London hospital for treatment and his condition is not life-threatening.