Car giant Ford is to cut up to 850 jobs at its UK operations by May.
Between 400 and 500 of the posts are to go at the Transit plant in Southampton. The firm said it hoped the losses would be met through voluntary redundancies.
Bosses will also renegotiate a recent pay deal struck at the south coast site and have postponed a decision on the future Transit production at the plant.
The GMB union accused Ford of "going back on its agreement" over a 5.25% pay increase agreed late last year.
The layoffs represent nearly 7% of Ford's UK work force of 12,900 - with almost half of the Southampton factory's staff of 1,100 affected.
The other 350 job losses will be spread across Ford's remaining UK sites in Basildon, Brentwood and Dunton, in Essex, Daventry in Northamptonshire, Halewood on Merseyside and Bridgend in Wales.
Read the full story at BBC News