Police are seeking to identify a man they believe may have witnessed the armed robbery of a service station at West Gosford this morning.

Police from Brisbane Water Local Area Command were called to the business on the Central Coast Highway about 12.15am today (Tuesday 21 April 2015), responding to reports a staff member had been threatened by two men, one armed with a knife.

The employee handed over cash and the men ran from the scene, last seen running towards Hely Street, Gosford.

The 28-year-old male attendant was not injured in the incident.

Police have now issued a description of two men they believe can assist with their investigation.

The first man is described as being about 173cm tall, between 60kg-80kg, with his face obscured. At the time he was wearing a dark hoodie and dark pants.

The second man is described as being about 183cm tall with a thin build. He also had his face covered. At the time he was wearing a dark hoodie and dark pants.

Police also believe a man may have witnessed the incident and have information vital to the investigators.

Investigators have been told this man was possibly aged in his 50s and was believed to be the driver of a gold-coloured sedan, which was stopped outside the shop.

They are appealing for that man to come forward and contact detectives at Gosford.

Police are urging anyone with information in relation to this incident to call Gosford Police or Crime Stoppers on 1800 333 000 FREE or use the Crime Stoppers online reporting page: https://nsw.crimestoppers.com.au/ Information you provide will be treated in the strictest of confidence. We remind people they should not report crime information via our Facebook and Twitter pages.

Extracted in full from NSW Police Media.