(Reuters) -About 4,000 workers represented by the United Auto Workers (UAW) reached an agreement with Volvo Group-owned Mack Trucks just before Sunday at midnight ET (0400 GMT), the union and the company both said.

“The terms of this tentative agreement would deliver significantly increased wages and continue first-class benefits for Mack employees and their families,” said Mack President Stephen Roy, in a statement.

The union announced the tentative deal on social media platform X, formerly known as Twitter.

The deal must still be ratified by the UAW. The union is currently in the third week of an ongoing strike against Detroit 3 automakers General Motors, Ford and Chrysler parent Stellantis.

(Reporting by Jahnavi Nidumolu in Bengaluru; Editing by Krishna Chandra Eluri)