PSA Group's reportedly plans to further scale back production at its Ruesselsheim plant near Frankfurt.

Reuters cited local newspaper group, VRM Gruppe, as saying Opel will cut production at its main German plant from 42 vehicles an hour to 35, after reducing output to 42 just last month.

The plans had not yet been approved, VRM reportedly said.

Citing a memo to workers, VRM also said plant management had filed for seven so called 'corridor days' 1-29 October, which effectively meant no production those days as workers reduce overtime.

An Opel spokesman told Reuters the group was regularly adjusting production plans at its sites but declined to be more specific.

PSA bought Opel and its British sister brand Vauxhall from GM (GM.N) last year in a $2.6 billion deal, and said it aimed to restore Opel to profitability by 2020.

PSA this week reiterated its EV plans, promising an electrified version of every new model.