An Australian man has been charged with assault after allegedly performing unauthorised surgery to remove another man’s left testicle. Police in Port Macquarie, on the New South Wales mid-north coast, say they searched the 56-year-old man’s home on Thursday and discovered medical equipment, seven firearms and four bottles of a liquid believed to be amyl nitrate.

They allege the surgery took place after a 52-year-old man placed an advertisement online seeking help with a medical issue.

The accused responded to the advertisement and the pair met in May at a Port Macquarie motel, where the 56-year-old man allegedly performed a surgical procedure to remove the 52-year-old’s left testicle.

Authorities were alerted one week later, when the patient visited a hospital to repair a wound he sustained during the procedure.

Police said the accused was not a qualified or registered doctor.

He has been charged with assault occasioning grievous bodily harm, possessing a restricted substance and unsafely storing a firearm.

He will appear in court on 13 July.