Home and Away actress Jessica Falkholt's life support turned off

The life support of Home and Away actress Jessica Falkholt has been turned off, more than a fortnight after a horror crash that claimed the life of her parents and sister in Australia.

The 29-year-old had been in St George Hospital, in Sydney, since the fiery Boxing Day collision near Ulladulla, on the New South Wales south coast.

Her life support was switched off on Thursday, The Daily Telegraph reported. On Friday, the hospital said she remained in a critical condition.

She had been riding in a car with her father Lars 69, mother Vivian, 60, and younger sister Annabelle, 21, on the morning of December 26 when it was hit head-on by a four-wheel-drive that veered onto the wrong side of the road. 

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The trio were laid to rest on Wednesday after a funeral at St Mary's Catholic Church, in the Sydney suburb of Concord.

The family was remembered as an inseparable, radiant group.

Jessica, who has appeared on Home and Away and other Australian series, was pulled from the wreckage of the family car with her sister before it erupted in flames with the bodies of their parents inside.

Home and Away posted on social media on Thursday night: "Rest in peace, beautiful Jessica Falkholt", with a link to a news story about her life support being turned off. The post has since been deleted.

- AAP/Sydney Morning Herald