Emergency services were called to Warialda Rd in Inverell just before 10.30pm on Sunday to reports a Holden Commodore had collided with a Mazda Bravo and then crashed into a pole.
A 23-year-old woman who was driving the Holden and her passenger, a 20-year-old woman, were seriously injured.
The driver was flown to Tamworth Hospital in a stable condition.
“The passenger, who was 32 weeks pregnant, was transported to Inverell Airport; however, despite the efforts of paramedics, the woman and baby died prior to being airlifted,” NSW Police said in a statement today.
The driver of the Mazda, a 19-year-old man, and his female passenger suffered minor injuries.
He was taken to Inverell hospital for mandatory testing.
A report will be prepared for the information of the coroner.
A section of the Gwydir Highway, called Warialda Rd as it passes through the town of Inverell, remains closed in both directions as investigators examine the crime scene.
INVERELL: a car crash has closed Gwydir Hwy in both directions between Jardine Rd and Bannockburn Rd. Light vehicles can divert via those roads; heavy vehicles must park up.
— Live Traffic NSW (@LiveTrafficNSW) March 8, 2020