Police have recovered a car bumper believed to belong to Russell Sherwood, a 69-year-old man who went missing during Storm Angus in South Wales on Sunday.
The bumper bears the registration of Mr Sherwood's vehicle, officials said.
Officers resumed the search on Tuesday and said they would focus their attention on the River Ogmore, specifically the area near the dipping bridge.
Superintendent Simon Davies of South Wales Police said: "This remains a difficult search in very testing conditions. The river is very swollen and fast flowing, and as such specialist officers with specialist equipment are conducting the search.
"The conditions at the search area remain treacherous and while we understand that people want to assist in helping to find Mr Sherwood, we would strongly advise the public to stay clear of the area."
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The family of a man who died weeks from an infection after a kidney "couldn't understand" why the hospital that treated him used an organ refused by other hospitals, an inquest has heard.
ITV News Correspondent Rupert Evelyn reports from an inquest into the deaths of Robert Stuart and Darren Hughes, who received allegedly infected donor kidneys at the University Hospital of South Wales.
Robert (Jim) Stuart & Darren Hughes died a couple of weeks after surgery in 2013. PM revealed infection caused by parasitic worm
Family "couldn't understand why Cardiff used this kidney when it had been refused by other hospitals"
A man is reported to have murdered a woman in a shocking attack at a South Wales hotel - and later died after being tasered by police.Read the full story ›
The senior prosecutor for the Crown Prosecution Service (CPS) Wales said Carl Mills was responsible for "starting a devastating fire" that had "distressing and tragic consequences".
He did so knowing full well who was in the house at the time and the evidence of his jealous and controlling nature makes it all too clear what his intentions were.
Once the fire had taken hold, neighbours and friends of Kim, Kayleigh and Kimberley Buckley did whatever they could to try and assist at the scene.
In contrast, Mills himself displayed a callous, almost casual disregard for the well-being of those trapped inside the house.
The family of Kim Buckley, Kayleigh and 6-month-old Kimberley said they felt 'justice was served' as Carl Mills was jailed for 30 years.
A statement, issued on behalf of the family by Gwent police, added:
"Carl Mills starts a life sentence for three murders but for us, the family and friends of Kim, Kayleigh and Kimberley, our life sentence started on 18 September last year when three beautiful innocent people were torn from our lives."
Jealous alcoholic Carl Mills, 28, bombarded his partner with threatening texts and, convinced she was inside with another man, warned: "I will burn your house down."
Mills stood unemotional and apparently uninterested as the jury at Newport Crown Court delivered three unanimous guilty verdicts.
He then sat and listened to a family victim impact statement read out to the court by prosecutor Gregory Bull QC.