Supplies of Irn-Bru could be affected this summer, as the threat of strike action looms.
Around a dozen drivers at the AG Barr production and distribution centre in Cumbernauld are being balloted on walkouts, after rejecting a 5% pay offer from the drinks giant.
Unite the union says the offer equates to a pay cut of 6.3% based on the current retail price index of 11.3%.
