Up to 20 jobs are set to be cut across the Herald & Times Group editorial, The Drum understands.
It's understood the production and photographic production departments will be the hardest hit at the Group, which produces the Glasgow-based Herald, Sunday Herald and Glasgow Evening Times. Staff were given the news on Thursday afternoon.
Scotland's NUJ organiser Paul Holleran said the union was very concerned at the latest job cuts and criticised American parent company of publisher Newsquest, Gannett.
"There are not enough journalists in place now and we are very keen to see the full proposals for the restructuring required to deal with the job losses," he said.
"I have pointed out that the practice of introducing new technology at the same time as making redundancies has been shown not to work across the industry.
"Management say they have no option as savings have to be made, yet Gannett are in the middle of paying out massive ($1.3bn) dividends to shareholders in the US.
"We will now be entering into consultation and working to minimise the redundancies and make sure the new structure can work as well as practically possible."
The Herald & Times will now enter a 30-day consultation period and open a voluntary redundancy programme, moving to compulsory redundancies if not enough volunteers come forward.