Systembolaget may be investigated by Sweden's National Audit Office, according to press reports.

Swedish newspaper Dagens Nyheter reports that the office has said it will monitor the investigations of the issues in the state alcohol monopoly. On the basis of this monitoring, the office will decide whether to carry out a separate investigation.

The alcohol retailer has been the subject of a widespread scandal which first came to prominence in January this year, when the company dismissed five store managers for alleged corruption. It is thought that up to one in five managers may be involved in the escalating scandal.