Body Of Missing Woman Qi Yu Believed Found

The 28-year-old has been missing since early June.

Police believe they've found the body of missing Chinese woman Qi Yu.

A crime scene has been established near the M1 motorway on Sydney's upper north shore, about one kilometre from the Berowra off-ramp on the side.

"While the body has yet to be formally identified, detectives from Campsie Police Area Command investigating the disappearance and alleged murder of 28-year-old Campsie woman, Qi Yu, are on scene to conduct inquiries," a police spokesperson said.

The body was reportedly "wrapped" in a material, which has not yet been disclosed.

The crime scene was established at about 8.30 on Wednesday morning, near where officers had been searching in bushland.

Police advised that one northbound lane on the M1 at Berowra remains closed as they continue their investigation.

Qi has been missing for almost seven weeks, last seen at her Campsie share house on Friday June 8.

She last spoke to her mother in China at about 7.15 on the Friday night, when the phone call ended abruptly.

Police believe she was transported to the Berowra area in her Toyota Corolla on the night she went missing. Her car was found by Campsie police in Burwood, about four kilometres from her home.

Her 19-year-old roommate, Shuo Dong, has been charged with her murder. He is understood to have refused to cooperate with police.