House fire at vacant Merrylands house

Police have launched an investigation following a house fire in Merrylands overnight.

About 10.30pm, emergency services were called to a vacant home on Chester Street after reports of a fire at the location.

Officers attached to Holroyd police forced entry to the premises to conduct a search of the property and ensure no one was inside.

No one was located inside the property.

One constable suffered smoke inhalation and was taken to Westmead Hospital as a precaution.

Fire & Rescue NSW personnel extinguished the blaze a short time later.

A crime scene was established and examined by detectives and specialist forensic officers.

While the investigation remains in its early stages, police are treating the incident as suspicious.