A march has been held by 6000 people in Derby, England, in support of the Bombardier train company.
Bombardier intends to cut almost half of its 3000 workforce after missing out on a £1.4 billion contract with Thameslink.
The BBC reports the government has been asked to reconsider a decision to make Siemens of Germany, the preferred bidder.
March organisers claim the job losses will be a huge blow for the local economy and UK manufacturing as a whole.
The crowd was told that public pressure could still force a change of heart from the Department for Transport.
A petition with 50,000 signatures demanding a review of the contract, was presented to the House of Commons last week.
But Prime Minister David Cameron says the government is legally bound by the terms of the tendering process and no U-turn is possible.
