Taikato said while the assault was between people who were members of different gangs, the incident did not reflect gang tension in the city.
The person assaulted did not want to make a formal complaint and Taikato said this made it difficult to look into the case.
Taikato said what happened had nothing to do with the large gang presence in town yesterday.
More than 200 Mongrel Mob members in Rotorua for the tangi of patched member Rex Maney and Taikato said there were no issues.
Maney was a patched member of the Mongrel Mob and known to law enforcement. He died last Wednesday and was buried at Pikirangi Marae, Rotokawa, Rotorua.