There are two St Albans District Council seats up for grabs as a by-election is held in the city today.
The Marshalswick South by-election follows the resignations of Heidi Allen and Seema Kennedy, who have both become Tory parliamentary candidates - for South Ribble and South East Cambs respectively.
Polling will be open until 10pm and all three main parties together with UKIP and the Greens are contesting the vacancies.
If the Conservatives lose just one of their two seats, they will no longer be the largest party in the council chamber.
The polling stations are at Bernards Heath Ingant School in Sandridge Road and United Reformed Church Hall in Homewood Road.
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