Five Brits including an 11-year-old girl killed in a plane crash in Sydney have been named.

The light aircraft plunged into Hawkesbury River shortly after 3pm on New Year's Eve killing all six on board including the pilot.

Police named the five UK victims as Emma Bowden, 48, Heather Bowden, aged 11, Richard Cousins, 58, and Edward and William Cousins, aged 23 and 25 respectively.

They were all known to each other as well as the Australian pilot, 44-year-old Gareth Morgan who was said to be highly-experienced.

According to the Sydney Morning Herald, the group had earlier been for a lunch at the Cottage Point Inn, a picturesque venue on the coast of New South Wales.

The plane was headed on a pleasure flight back to Rose Bay when it plunged into the water shortly after take-off, it is reported.

The cause of the New Year's Eve crash is currently unclear.

Police in New South Wales say the single-engine plane sank after smashing into the river.