EAST HARTFORD, Conn. (AP) — Approximately 3,000 union laborers initiated a strike early Monday at Pratt & Whitney, a jet engine manufacturer in Connecticut, following a stalemate in discussions concerning wages, retirement plans, and job security.

The International Association of Machinists and Aerospace Workers had members picketing at the East Hartford and Middletown production sites after 77% of nearly 2,100 union participants voted to proceed with their first strike since 2001, as per union officials. Their contract had expired late on Sunday.

“Pratt and Whitney’s strength in military and commercial aerospace products is due to our members,” stated David Sullivan, the union’s eastern territory vice president. ”The company’s proposal fails to address our members’ concerns, and the decision has been made to strike — we will persist in our quest for a fair contract.”

Picketing workers lined and crossed streets near the entrances to the East Hartford and Middletown plants on a rainy Monday morning. Many of the signs said “I am on strike! against Pratt & Whitney,” while some read “Solidarity for Security” and “Together We Rise.”

Some workers said they were concerned that the company may move jobs and manufacturing out of the state to its plants in Georgia.

“They’re not giving us job security. We need time to be here,” union member Scott Westberg told WFSB-TV. “We want to be in Connecticut a long time. They’re trying to deteriorate the middle class, which is what we are. We are the blue collar.”

The company, a subsidiary of Arlington, Virginia-based RTX Corp., called its latest wage and retirement proposal competitive, and said its workforce is among the most highly compensated in the region and industry.

“Our message to union leaders throughout this thoughtful process has been simple: higher pay, better retirement savings, more days off and more flexibility,” the company said in a statement. “We have no immediate plans to resume negotiations at this time and we have contingency plans in place to maintain operations and to meet our customer commitments.”

The strike comes as RTX faces a potential $850 million hit on profits this year because of tariffs imposed by President Donald Trump, if the tariff rates remain the same through the year. During its first-quarter earnings call on April 22, the company said its Pratt & Whitney and Collins Aerospace subsidiaries would each shoulder just over $400 million of the potential tariffs hit.

RTX is predicting $83 billion to $84 billion in adjusted sales companywide in 2025. The company’s first-quarter earnings were $1.5 billion. Pratt & Whitney’s adjusted operating profit in the quarter was $590 million.

The company said its latest contract proposal included an immediate 4% wage increase, followed by a 3.5% increase in 2026 and a 3% increase in 2027. It also included a $5,000 contract ratification bonus and enhanced pension and 401k plan benefits.

Pratt & Whitney makes engines for commercial and military jets, including the GTF line for Airbus commercial jets and the F135 for the military’s F-35 Lightning II fighter aircraft fleet.

Connecticut Gov. Ned Lamont and Lt. Gov. Susan Bysiewicz, both Democrats, issued a statement urging the company and union to continue negotiating. Members of Connecticut’s all-Democratic congressional delegation and Democratic state lawmakers said they were supporting the union workers.