The owner of the Daily Mail and Mail on Sunday is cutting more than 400 jobs to help it deal with a decline in newspaper advertising.
Daily Mail and General Trust plc (LON:DMGT) said it was launching a shake-up of certain businesses in the group that were facing challenging markets.
It did not give details in a statement about which businesses were being restructured or how many jobs would go.
But reports put the number at over 400 and said just under half would come from its DMG Media business, which includes the Daily Mail, Mail on Sunday and Mail Online.
The cuts would hit all areas of its business, although editorial cuts were "not significant", The Guardian quoted finance chief Stephen Daintith as saying.
"Given the challenging market conditions facing certain businesses within the portfolio, reorganisation initiatives are being implemented to protect their profitability," DMGT said in its trading update.
"The reorganisation initiatives, which include headcount reductions, are expected to result in total cash-related exceptional operating costs in the current financial year of approximately £50mln, rather than the £15mln previously guided to in May."
Along with rivals, DMGT's traditional newspaper publishing business has suffered in the face of tough advertising markets and online competition.
Revenue at DMG Media took a 2% tumble in the 11 months to the end of August as total year-to-date underlying advertising revenue fell 4%.
A 17% rise in digital advertising revenue helped to make up for a 12% decline in print advertising.
In the five weeks since August 21, total advertising revenues in the media business dropped by an underlying 10%.
But DMGT said its full-year outlook remained in line with market expectations thanks to a relatively stronger performance in its business information operations.
DMGT reported a 2% rise in underlying revenue at its business-to-business activities such as DMG Information, risk management, events and Euromoney Institutional Investor.
Reported revenues benefited from the weaker British pound relative to the US dollar.
Shares in DMGT rose 7p, or 1%, to 720.5p in early London trading.