Job losses in the UK will be inevitable but the bulk of the job losses, as many as 3000, will fall in Canada and mainly affect its aerospace business.
It also signaled an announcement on the job losses in Northen Ireland and its rail operations in Derby will come in the coming weeks, a spokesperson for Bombardier told Sky News.
Last October, 280 jobs were cut from its Northen Ireland business, mainly non-manufacturing roles. The company has 4000 workers in Belfast making wings and parts for the C Series passenger jet.
This is the third round of job cuts at the debt-laden Canadian company since Chief executive Alan Bellemare took the post in 2015.
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The latest jobs cuts will take place over the next 12 to 18 months, leading to annual savings of $250m (£190m) by 2021. The company has a debt of $9.5bn (£7.2bn).