A 27-year-old man has died after a collision involving an off-road motorcycle.
The collision, which involved a single off-road bike, happened at around 5.20pm on Sunday, September 6 on Penrhys Road near Ystrad.
Officers are now appealing for information and dash-cam footage that could help them with their investigation.
In a statement, South Wales Police said: “We are appealing for witnesses following a collision on the B4512 Penrhys Road, near the village of Ystrad, which occurred at approximately 5.20pm today (Sunday, September 6).
“The collision involved a single vehicle; a green off-road motorcycle.”
They added: “Despite the best efforts of emergency service colleagues the motorcyclist – a 27-year-old man – was declared deceased. His family have been informed and are being supported by specially trained officers.
“The road currently remains closed while investigative work continues. Motorists are advised to avoid the area and use alternative routes. Their patience and understanding is appreciated.
“Officers investigating the collision are appealing for anyone who witnessed the collision, or the motorcycle in the moments prior to it, to make contact.
“They’d also like to hear from anyone who has dash-cam, mobile phone or CCTV footage which could assist the investigation.”
Call 101, quoting occurrence 2000326097 if you can help.