Telecoms giant BT - which has office in Doncaster - to axe around 13, 000 jobs
The company said the job cuts and other measures would help it achieve a cost reduction of £1.5 billion.
BT also announced 6, 000 new employees would be hired "to support network deployment and customer service."
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Hide AdThe company intends to move its headquarters out of central London to a site yet to be announced.
In a statement, BT said it was responding to changes in the telecoms market, including "increasing competitive intensity from established companies and new entrants.
"It is critical that BT transforms its operating model to build a lean and agile organisation that delivers sustained improvement in customer experience and productivity."
The firm also announced a 13-year plan to plug its £11.3bn pension fund deficit, including regular payments into the scheme and a bond issue.