Metropolitan Superintendent Silva Sika told NBC National Radio yesterday afternoon.
This is to stop a protest March that has been mooted and speculated on social media Facebook.
Sika said any protest today would be illegal as police have not
recieved any two weeks notice and a round table discussion with any organiser did not take place.
Mr Sika said the discussion was critical to identify safety threats and opportunities during any protest.
He has urged city residents to go about their usual business today and assured them that police are ready and capable of confronting any safety concerns that may arise.
Protests in Port Moresby against the government in recent years have sometimes turned bloody nasty when opportunists take advantage and destroy properties and vehicles.
This morning in Port Moresby it appears there was normal business with children being dropped off at schools, cars were on the road, those employed were going to work and major popular supermarkets opened as usual.
