Northern Territory Police say a driver involved in a car crash in Darwin on Friday was naked.

Officers made the surprise discovery after rushing to the suburb of Tiwi following reports of a crash.

The 34-year-old driver and his female passenger were uninjured.

He was charged with high-range drink driving after recording a blood-alcohol level of 0.154 per cent.

He is also expected to be charged with assault after spitting at an officer.

The man's 27-year-old woman passenger received a drug infringement notice for the possession of cannabis.