Provincial Police Commander, chief inspector David Yapu, said the first incident occurred at the Lorengau Provincial Hospital.
He said six suspects, armed with a factory made .22 rifle, homemade guns, a bush knife and axe, held up a driver of the hospital.
They stole the hospital vehicle from him and drove off to ward 3, Lorengau town.
The suspects abandoned the hospital vehicle at ward 3 and held up another victim and stole a hire vehicle, a 10-seater, from him.
“The suspects fired a shot in the air and drove off with the vehicle,” said the PPC.