TWO Logan Reserve teens have been charged after two convenience stores were robbed and an incident where a man allegedly had his car stolen at knife-point.
Police allege a man and a 16-year-old girl entered a business on Bailey Road at Birkdale about 10pm on Sunday, producing a knife and demanding money from staff.
The employee gave the pair a sum of cash from the till before they fled the scene.
Police say on Monday about 8.30pm, two girls, aged 16 and 17, were being driven by a 19-year-old man to Auchenflower when one of the girls produced a knife and demanded he exit the vehicle.
The man got out of the car and the girls allegedly drove away in the Mazda 6.
Police say the stolen vehicle was driven to a service station on the Bruce Highway in Glass House Mountains. The driver failed to pay for fuel before leaving around 12.40am on Tuesday.
Four hours later, two teenage girls entered a convenience store on Boat Harbour Drive in Pialba, Hervey Bay and allegedly threatened a console operator with a knife, demanding cash.
According to police, the girls took the till and fled the store.
At 10.30am, police arrested two teenage girls at Mansfield.
The stolen car was allegedly located nearby.
A 16-year-old Logan Reserve girl has been charged with three counts of armed robbery in company, as well as entering premises and committing an indictable offence, unlawful use of a motor vehicle and stealing.
A 17-year-old Logan Reserve girl has been charged with two counts of armed robbery in company and one count each of unlawful use of a motor vehicle, stealing and possessing dangerous drugs.
The are both due to face court at a later date.
Investigations are continuing.