AT&T on Thursday afternoon announced it has struck a deal with the Communications Workers of America (CWA) covering wireless employees in the carrier’s Southwest region.

According to AT&T, the new four-year contract will cover more than 9,400 CWA-represented Mobility employees in Arkansas,Kansas, Missouri, Oklahoma and Texas.

AT&T said the agreement was reached on February 28, but a vote approving the agreement wasn’t announced until this week. The contract will be retroactive to February 27, the carrier said.

The news comes as Verizon continues its contract battle with the CWA.

On Wednesday, nearly 40,000 Verizon wireline workers in the Northeast followed through with a strike after contract negotiations failed to yield any progress.

Negotiations between Verizon and employee unions, including the CWA and International Brotherhood of Electrical Workers (IBEW), have been ongoing for around ten months. Those involved in the strike have been working without a contract since August 1, 2015.

The CWA said Verizon has failed to meet pledges to expand FiOS broadband and accused the carrier of looking to move jobs out of the United States.

Verizon workers are currently on strike in New York, Massachusetts, Maryland, Virginia, Pennsylvania and New Jersey.

The situation between Verizon and the CWA has drawn the attention of Democratic presidential candidates Bernie Sanders and Hillary Clinton, who visited the picket lines in New York City on Wednesday.

Sanders voiced his support for the striking workers, saying Verizon is “just another major American corporation trying to destroy the lives of working Americans.”

In a LinkedIn blog post, Verizon CEO Lowell McAdam called Sanders’ views “uninformed” and “contemptible.”

Sanders replied on Twitter that he “(doesn’t) want the support of McAdam, Immelt and their friends in the billionaire class” and instead “ welcome(s) their contempt.”

This isn’t the first time Verizon has felt the “Bern.”

Verizon and Sanders have previously clashed over the carrier’s tax history, after the latter accused Verizon of being one of the top 10 tax avoiders in the country.

Verizon called Sanders’ claims a “campaign of misinformation and inaccurate data.”