Staff at a Ladbrokes betting call centre on Merseyside are staging a 24-hour walkout in a row over pay.
The union Usdaw said hundreds of workers at the site in Aintree were set to strike from 0500 BST on Sunday.
It said staff were unhappy after being offered what they said was a below-inflation pay rise of 3%.
A spokesman for Ladbrokes, which also has a call centre in London, said the strike action had had "absolutely no impact on services".
Posted by casino man in Gambling News