A third stretch of the A470 in Powys is closed this afternoon after a second crash between three vehicles left one person trapped.

Dyfed-Powys Police have closed the A470 near Newbridge on Wye this afternoon (October 23) after another crash on one of the main roads in Powys.

Mid and West Wales Fire and Rescue Service said the incident involved two private motor vehicles and a light van, with five people involved.

"Five casualties were involved in the collision, with one casually medically trapped," the fire service said in a statement.

"Crew members assisted paramedics in releasing the casualty using small tools.

READ MORE: Long delays as A470 near Llanidloes closed following crash

READ MORE: A470 remains closed after Powys train crash as investigation is in 'early stages'​

"This incident required a multi-agency response, with Dyfed-Powys Police and the Ambulance Service also in attendance.  The road currently remains closed."

Police have closed the road between Newbridge and Doldowlod with traffic at a standstill near the junction of the A4081.

Dyfed-Powys Police have said that “the road is currently closed due to a collision” and have advised drivers to “please avoid the area and find alternative routes for your journey”.

It is one of three closures currently in place on the A470 throughout the county, with the road closed near Llanidloes following a crash, and near Glantwymyn while investigations are carried out into Monday's rail tragedy.