Police are investigating the shooting deaths of two men in Sydney's north-west last night.

Officers were called to a home on Quarter Sessions Road at Westleigh following reports of shots being fired just before 8pm AEST.

When they arrived they found the men's bodies, both with gunshot wounds.

A crime scene has been established and forensic officers have spent the night at the house.

The men have not been identified, but both are aged in their 30s. A report will be prepared for the coroner.

Police say there is no evidence at this time that anyone else was involved.

Those with information are urged to contact Hornsby Police or Crime Stoppers on 1800 333 000.

It comes less than two days after a mother and her daughter were found murdered at their home at Auburn in a separate incident.