The metalworkers at General Motors' Brazilian plants have initiated a strike to express dissatisfaction with layoffs executed by the Detroit automobile manufacturer.

The Sindmetal union representing the workers confirmed the decision, reported Reuters.

The strike, which was announced for an "indefinite period of time," came as GM reduced its workforce at three factories in the state of Sao Paulo. The decision was made because of a decline in sales and exports, which GM deemed as a "necessary" step for its sustainability, the article noted.

Workers at the Sao Jose dos Campos plant voted to strike first, then employees of the Sao Caetano do Sul and Mogi das Cruzes plants agreed to similar measures.

"The plant will only resume production after the job cuts are canceled and job stability is guaranteed for everyone," the union said in a statement, arguing the company had agreed to provide stability for employees until May 2024.

According to the union, GM has about 4,000 employees in Sao Jose dos Campos. They manufacture engines, gearboxes, the Trailblazer SUV and the S-10 truck. The union also mentioned that approximately 1,200 workers had their contracts temporarily suspended, Reuters reported.

"We understand the impact this decision might have on people's lives, but the move is necessary and will allow the company to maintain the agility of its operations," GM said in a statement.