Co-op is set to offer its members a discount on its shop after a cyber attack which saw customer data being stolen.

The grocery chain said it is offering £10 off a minimum £40 shopping bill after the attack.

The one-time offer starts Wednesday and runs for a week and is available to current Co-op members and new sign-ups, but excludes staff.

A source at Co-op told the BBC sales have picked up strongly in recent weeks as stock levels have returned to normal.

The source added the deal was intended to show that Co-op was 'on the front foot' ahead of the busy summer trading period.