Police continue to search a river for a missing woman who was last seen more than five weeks ago.

A major search operation of the River Windrush in Witney has passed the five-week mark after Iona, 76, whose full name has not been given, was reported missing on February 12.

A week after her disappearance Chief Inspector James Sullivan said police were "extremely concerned" for her welfare but were "keeping an open mind and following all lines of enquiry".

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She was last seen in the town wearing a long brown coat, leggings and black Nike trainers.

A specialist dive team from Avon and Somerset were brought in and spotted using rubber dinghies in the search while a police drone also assisted.

Marine units, specialist search and rescue, the criminal investigation department, the missing investigation support team and the national police air service searched nearly 2km of the river.

A spokesman for Thames Valley Police confirmed today (March 21) the search is continuing. 

"Iona is still missing and we are continuing our search. "Lowland Rescue are still actively assisting with our searches," he said.

Anyone who has any information that may assist the Thames Valley Police investigation is asked to call the emergency number 999, quoting the reference number 43240068765.

Any sightings or information on Iona's whereabouts can be reported on the Thames Valley Police website.