The Post Courier newspaper reports that the police said 140 stolen vehicle incidents had been logged since January 1 this year.
In the National Capital District, 76 cars have been reported stolen since January.
NCD Metropolitan Superintendent Perou N'Dranou said that the increase in hold-ups and related carjackings was not a new thing and that while the numbers were discouraging, recent policing developments in the second quarter of the year have drastically improved crime statistics in general.
In Madang, Provincial Commander Ben Neneo told The Post Courier that Jomba Police station had received more than 20 stolen vehicle reports this year, with Lae, Rabaul and Mt Hagen all reporting just less than 10 each.
When asked about the supposed increase in carjackings, Police Commissioner Gary Baki said that the APEC preparations and earlier devastation in the Highlands had somewhat stretched police efforts in the first quarter but added that this was no longer the case.
Baki said that police were now stepping up their efforts with an increased and visible presence all around main urban areas of PNG, most notably in Port Moresby.
N'Dranou added that crime was on decline as police have increased their rounds in city streets now adding foot-beats and regular patrols along crime hotspots of the city.
"While we as the police assure you that we are doing our utmost to keep you safe, it is advisable to watch for dark tinted vehicles that follow you for unreasonably long periods of time as well as being generally alert when walking on streets," N'Dranou said.