Police are working to establish if remains found at the base of a cliff in inner-city Brisbane are human.

The grim discovery of what they believe to be the remnants of a body was made on Monday morning in scrubland near Lower River Terrace at the foot of the Kangaroo Point cliffs.

Personal items were also found.

Police have declared a crime scene at Kangaroo Point cliffs after a member of the public located what are believed to human remains around 10am today. https://t.co/0iNAzxu9Yp pic.twitter.com/bNq9XrwB6g

— Queensland Police (@QldPolice) September 10, 2018

A member of the public notified authorities about 10am and a crime scene has been established, with sections of parkland above and below the cliff cordoned off.

Detectives were on Monday afternoon scouring through long grass and bushes just metres from a popular walkway that runs along the bank of the Brisbane River.

AAP