Northern Territory Police are calling for information after a pedestrian strike occurred in Palmerston overnight.

Around 11:30pm, police received reports that a female pedestrian had been hit by a red coloured vehicle on Emery Avenue in Woodroofe.

The driver initially failed to stop at the scene or render assistance, but subsequently pulled over and called emergency services a short time later. Police located the driver and conducted a breath test, which returned a positive reading.

The 36-year-old male driver was taken into custody and is expected to be charged later today.

The female pedestrian was transported to Royal Darwin Hospital in a critical condition with injuries to her head.

Investigations are continuing.

Police urge anyone who witnessed the incident, or who has dash cam or CCTV footage, to contact police and quote reference number P24190150.

Anonymous reports can also be made through Crime Stoppers on 1800 333 000 or via https://crimestoppersnt.com.au/.