GLADSTONE Police have asked for urgent public assistance after a man was held at knifepoint and forced to drive by an armed offender on Wednesday.

The car jacking took place at about 6pm at the Toolooa and Derby St intersection.

The victim was stopped at the lights at the intersection when the offender entered through the unlocked back door of the car, before holding a knife to the 58-year-old driver's throat.

The driver, a worker at QAL, was ordered to take the offender to an address at Dalrymple Dr, across the road from the park.

Before the offender left the vehicle he punched the driver in the face.

Injuries were not sustained from the knife, but superficial injuries were suffered from the punch.

Det Snr Sgt Luke Peachey said the driver was shaken up after his vehicle was entered and he was threatened with violence

The victim went to Gladstone Police Station immediately after the incident, and police employed the dog squad to try and track down the offender.

However, there were unsuccessful in their attempts.

The offender was last seen running towards the park on Dalrymple Dr, and Det Snr Sgt Peachey asked anyone with information to contact Gladstone Police or Crimestoppers immediately.

"We're investigating all possibilities, and what I would ask is that anyone who might know this person to contact us but don't try to approach this person, he obviously has a propensity for violence," he said.

The offender is described as being about 176cm tall, between 18-22 years of age, of average build and with sandy blonde hair.

He was wearing dark coloured jeans and a dark flat-brim baseball cap.

Posting on Facebook, the man's wife said that after the incident had been reported, police swung into action with the dog squad and several members going to the scene.

"They treated my husband with respect and dignity. I could not fault them in any way," she said.

"QAL sent my husband's boss to stay with him at the police station and later to take him to the hospital. Thank you QAL, they do look after their workers. "

The woman warned that Gladstone was no longer a country town and people should lock their doors when driving.

Police are asking for any members of the public who may have seen any suspicious activity along Dalrymple Drive on Wednesday night to contact Crime Stoppers on 1800 333 000.

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