Alcohol-induced violence, especially between different ethnic factions, in the Papua New Guinea capital of Port Moresby is on the increase, local police say.
The situation was posing a great challenge, NCD Central Commander Acting Assistant Commissioner Anthony Wagambie Junior said.
Mr Wagambie said some parts of the city had recently experienced fighting and drunken brawls, with police having to quell the violence.
He appealed to residents to drink and behave responsibly.
Police have initiated a special operation targeting drunk and disorderly behaviour called "Drunk Patrol".