WASHINGTON (WUSA9) -- Thousands of workers at 10 U.S. airports have postponed the strike that was expected to begin Tuesday night, including at Reagan National.

According to Airport Workers United, the strike was postponed following the terror attacks in Brussels.

“We stand in solidarity with the Brussels Airport workers and our thoughts and prayers are with the families that lost loved ones in this senseless tragedy,” said Legesse Woldearegay who works as a customer service agent for Eulen America, a Miami-based Delta and American airlines contractor. “We must all work together to make our airports as safe as they can possibly be.”

The strike would include terminal cleaners, cabin cleaners, skycaps, wheelchair agents, customer service agents, terminal security officers, ramp workers and baggage handlers.

The workers were striking due to reported workplace issues like health and safety violations, unfair labor practices and a lack of training.

The union represents nearly 20,000 contract workers in more than 30 airports nationwide.

“SEIU supports efforts to improve airport safety and security through policies that set minimum labor and training standards for airport contractors and provide incentives for airport workers to stay in their jobs long-term,"said Valarie Long, SEIU International Executive Vice President. " SEIU strongly believes that airports, the Federal Aviation Administration and other stakeholders need to come together to develop national safety standards."