Hundreds Washington Post employees, of one of the most prestigious newspapers in the United States, will strike tomorrow, Thursday, for one day, their union announced, which denounces the lack of will on the part of management “to bargain in good faith.”

The strike comes after 18 months of fruitless talks on a new deal, which have mainly involved wage claims or related to telecommuting. It also takes place after the management of the newspaper, whose owner is the billionaire Jeff Bezos, warned that further layoffs are possible.

“To proceed with this historic measure was not a decision we made lightly,” the Washington Post Guild said in a letter to readers Tuesday announcing the strike.

According to the union, management “refused to negotiate in good faith and – repeatedly and illegally – broke off negotiations on key issues, including wages, employee mental health support and voluntary redundancies.”

The Washington Post Guild represents about 1,000 newspaper workers, both editors and support staff, according to its website.

In October, the Washington Post reported, citing plans to lay off 240 workers, that the company had about 2,500 employees.

Traditional American media have been struggling for years amid a sharp decline in readership in favor of social media platforms.