More than 1,000 jobs are set to be axed by defence contractor BAE Systems, the BBC understands.
Sky News said numerous job cuts will affect the company's Warton plant in Preston, Lancashire, with new chief executive Charles Woodburn also "trimming" its workforce in other locations.
The latest round of redundancies are expected to be made public on Tuesday, although the announcement could be brought forward to later on Monday as a result of the early disclosure.
Almost half of BAE's 83,000-strong workforce is based in the United Kingdom and the news is expected to be made public tomorrow. The timing of these job losses is expected to have an impact on the economy and with predictions that the news could become official later today or tomorrow.
Chief executive Charles Woodburn took over the company three months and will now be "trimming" his workforce.
HERE COMES THE GROOM Bride "performs sex act" in cheeky snap - the start of a risque trend?
He said then: 'We obviously have to review our (Typhoon) production demand very carefully.
The Financial Times reported this morning that a potential order for 48 more Typhoons from Saudi Arabia may not materialise, adding: "BAE's jet exports are likely to halve in 2018, and again in 2019", quoting figures from an industry analyst.
In August BAE reported an 11% rise in half-year underlying profits to £945m and said it was on track to meet its full-year target. Its largest markets are Britain and the United States, and it also has substantial operations in Saudi Arabia, India and Australia.