About 11pm on Friday, September 27 2019, officers attached to Brisbane Water Police District were called to a home on Satinash Drive, Hamlyn Terrace, following reports a man had been seriously injured.

Police were told that a 24-year-old man was outside the home when a black Holden Commodore attended the location about 9.45pm.

A group of men exited the vehicle before assaulting the man and stealing his wallet and mobile phones.

The men then entered the home before attempting to kidnap the 24-year-old man. They left the scene in the Commodore a short time later.

The injured man was taken to Gosford Hospital for treatment. He has since been released.

Investigators believe the incident may be linked to a home invasion reported a week earlier on Tuesday, September 17.

About 8pm, three men entered a home on Ghersi Avenue, Wamberal, and threatened a 29-year-old man and 25-year-old woman with a hammer and a baseball bat, before stealing cash and personal items.

Brisbane Water Police District Crime Manager, Acting Inspector Evan Davies, said there are people on the Central Coast with knowledge of the incidents who need to come forward.

"Police do not believe either of these incidents were random - these were targeted crimes and we know there are people out there withholding information," A/Insp Davies said.

"We are urging anyone who may have any information, CCTV or dashcam footage, or who may have heard anything suspicious on these days, to contact police immediately."

Police are also investigating whether the incidents are linked to outlaw motorcycle gangs (OMCG).

Anyone with information about this incident is urged to contact Gosford Police on 4323 5599 or Crime Stoppers: 1800 333 000 or https://nsw.crimestoppers.com.au. Information is treated in strict confidence. The public is reminded not to report crime via NSW Police social media pages