Blue Mountains landslide: British father and son killed as two other family members in critical condition

Crews have worked into the night to retrieve the bodies of a British father and his son after five members of the same family were caught in a landslip in the New South Wales Blue Mountains.

The nine-year-old boy and his 49-year-old father died at the scene at Wentworth Pass, NSW police said.

A 50-year-old woman and a 14-year-old boy were winched from the scene and taken to hospital in critical conditions with significant head and abdominal injuries following the land slip on the walking track.

A fifth member of the same family, a 15-year-old girl, was treated for shock after the incident, which was reported to emergency services at about 1.40pm (AEST) on Monday.

Police said the quintet are British nationals who were holidaying in Australia.