Oil refinery workers accused boss Ineos of "playing Russian roulette" with fuel supplies as they prepared to kick off industrial action today.

More than 1,000 staff at Ineos's Grangemouth refinery were set to start an overtime ban and work-to-rule over the victimisation of Unite union convener Stevie Deans.

The union has called for an emergency summit with Scottish ministers and parliamentary debate to prevent the company's plans for layoffs and slashing of pay and conditions.