Police investigating the death of a woman in Ceredigion are now treating the incident as a murder inquiry.
The incident was initially being treated as a suspicious death.
A 59 year old man from the Llandysul area has been arrested on suspicion of murder and remains in police custody.
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The raids took place in Oakley Way in Caldicot and the Somerton area of Newport on Friday, 20 April.
Passengers being urged to check before they travel as upgrading work begins between Cardiff and the Severn Tunnel.
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