The force said the motorcycle is believed to have collided with the railway bridge between Bow Street and the Comins Coch junction. The railway bridge on the A487 between Bow Street and Comins Coch, where a motorcyclist was seriously injured in a collision on Wednesday, August 5. (Image: Google Street View)The rider, a woman, was airlifted to hospital where she continues to receive treatment. False rumours circulate onlineEarlier, police were forced to issue a statement after false social media posts circulated claiming the motorcyclist had died. A spokesperson said: "We have been made aware of social media posts circulating that suggest the motorbike rider has since died.