The most senior consultant at the Royal Cornwall Hospital has resigned from the board.
Medical director Paul Upton is now the fifth member of the management team of one of the region's biggest hospitals to stand down.
The Trust has appointed an Dr Duncan Browne as Interim Medical Director and says it plans to advertise for Medical Director appointment as-soon-as-possible.
More top news
It's not just visitors at Exmoor Zoo who've been tucking into ice lollies and cool drinks in the heat - check out these charming pictures
A memorial is to be held for a man from Bodmin who was killed during the Tunisia massacre. His wife is recovering in hospital
Part of a Somerset street has been sealed off after the discovery of a large dip in the road. Engineers are investigating what caused it.