Police are appealing for information following a road crash in which an 11 year-old boy was flown to hospital by air ambulance.
The collision happened on Penrhiwceiber Road, Mountain Ash at around 0845 this morning.
Police and emergency services attended and the Wales Air Ambulance took the boy to the University Hospital of Wales, Cardiff. His condition is described as critical.
South Wales Police says it wants to trace the rider of a red motorbike which left the scene moments after the incident.
Anyone with information is asked to call 101 quoting reference number 1500323884.
Two more people have been arrested after an elderly woman suffered a 'serious and unexplained' injury at a hospital in Rhondda Cynon Taf and later died.
South Wales Police has confirmed that two women, aged 58 and 62, were arrested on Thursday 18 June, on suspicion of assault and conspiring to pervert the course of justice, and have since been released on bail.
Tegwen Roderick, 88 and from Abercanaid in Merthyr Tydfil, died at the town's Prince Charles Hospital, after police said she suffered a 'serious and unexplained' injury at Ysbyty Cwm Cynon at the end of May.
South Wales Police says a 52-year-old women arrested on 13 June on suspicion of assault and conspiring to pervert the course of justice, and a 64-year-old man arrested on 16 June on suspicion of conspiring to pervert the course of justice are also on bail pending further enquiries.
The A4059 has re-opened after an accident between the B4275 Ffrwd Crescent (Mountain Ash) and Canal Road (Cwmbach).
The A4059 is closed and there's heavy traffic after an accident between the B4275 Ffrwd Crescent (Mountain Ash) and Canal Road (Cwmbach).