Thousands of Bombardier workers in Northern Ireland face uncertainty after the Canadian company announced 5,000 job cuts globally on Thursday.
The struggling plane and train maker has not said where the cuts would be made over the next 12 to 18 months.
Bombardier employs almost 70,000 people, including 4,000 in Belfast, making it the city’s biggest employer.
The firm will also sell its Q Series aircraft for $900m (£687m) and the de Havilland trademark for $300m.
Bombardier also operates in three other locations in Northern Ireland – Newtownabbey, Dunmurry and Newtownards. It accounts for a tenth of Northern Ireland’s manufacturing exports.
“We have set in motion the next round of actions necessary to unleash the full potential of the Bombardier portfolio,” said chief executive Alain Bellemare.
Following the announcement, a Bombardier UK spokesperson said: “We will take the necessary time to evaluate what this means for our Aerostructures and Engineering Services business. We will communicate with our employees in more detail over the coming weeks.”
Earlier this year, Bombardier sold a majority stake in its loss-making C-Series aircraft to Europe’s Airbus, with the plane being renamed the A220.
The announcement came as Bombardier unveiled its third-quarter results in which pre-tax profits doubled to $267m for the three months to September compared with the same period last year.
It also forecast revenue growth of 10% in 2019 to at least $18bn.