Ambulance officials have launched an investigation after a Polperro man complained the crew of the vehicle in which he was being taken to hospital stopped to pick up hitchhikers. Glenn Buscombe, 60, was being taken from his home to Derriford Hospital in Plymouth for treatment to a blood clot in his leg and said later he was shocked when the ambulance pulled over near the Carkeel Roundabout at Saltash, stopping for a man and woman at the roadside. A spokesman for South Western Ambulance Service NHS Foundation Trust said the A38 near the roundabout was known to be dangerous and the driver thought he had a duty of care. He confirmed that the trust had received a complaint from Mr Buscombe relating to a routine transfer from his home address to the hospital in the early hours of Sunday, April 6. 'The trust takes all complaints seriously and has started an investigation to establish exactly what happened during the transfer. 'Once this investigation has completed we will be writing to Mr Buscombe again to inform him of our findings and the outcome of the investigation.'