Keith Davies, the Labour Assembly Member for Llanelli, is seriously ill at the University Hospital of Wales in Cardiff.
Mr Davies, who's 71, was elected to the assembly after a career as a teacher and subsequently as Director of Education at Carmarthenshire County Council.
More top news
Results for constituencies across Wales are being announced. Find out the details for your area.
Turnout figures at Welsh constituencies are being released as concerns grow that they could be as low as 2003.
As votes are being tallied across Wales this evening, here are what some of our reporters are saying at counts up and down the country.