Trinity Mirror admits it is in the process of making redundancies amid stories that high-profile staff have been targeted.
Lee Harpin, agenda editor of the Daily Mirror, Sunday Mirror and Sunday People, is among those who have been told they are in line for redundancy as part of the £15m cost savings, according to The Guardian.
Harpin previously worked at the News of the World and was arrested last year for phone hacking but no further action was taken.
It is thought that around 15 staff are affected, mostly those on higher salaries, and around half of them are journalists.
According to The Guardian, they include award-nominated chief reporter Matthew Drake, associate features editor Clemmie Moodie, and northern news reporter Stephen White.
A spokesman told Prolific North: “Like all media companies, it is essential that we adapt to the changing industry and ensure we continue to operate efficiently and control costs.
“This has been a key part of our strategy for several years and is unrelated to the New Day or recent share price movements.
“An unfortunate but necessary part of this strategy as pressure on print revenue continues is identifying savings in editorial budgets, which include some proposed redundancies at the Mirror.
“We are now in consultation with those impacted so unable to confirm further details while that process is ongoing.”