The Solomon Islands opposition leader, Derek Sikua, has condemned last Saturday's killing of a diplomat in Honiara.
Simon Fuoo, who had served in Australia and Switzerland, was stabbed to death by unknown assailants outside the Central Market.
Four other people were injured in the assault.
Dr Sikua says such actions are tarnishing to the image of Solomon Islands especially when it is preparing to host the Oceania nations' cup competition in June and the Festival of Pacific Arts in July.
He says the rise of street crimes is destroying communities and it is the collective responsibility of all residents to combat such unlawful activities.