LOWER MACUNGIE TWP., Pa. - Workers at Mack Trucks continue striking Monday morning.

The company's Lower Macungie Township plant is one of several facilities in three states involved in the strike, affecting 3500 workers nationwide.

Workers from Mack Trucks have taken over the grounds of the facility, wearing red t-shirts that read "we are one."

"This has been awesome... I don't know numbers or people are saying 1,000 or 1,500, I don't know how many are here right now," said Walter Smith, president of the UAW Local 677.

The UAW union representing the workers says despite negotiations, many topics remain unresolved, including wage increases, job security, scheduling, pensions, and healthcare. They say they are ready to stand their ground until they have a contract that works for both the company and its employees.

"We just want to make sure that we secure this place to work for the next contract," Smith said.

In a statement from Mack Trucks, the company says, "We are surprised and disappointed that the UAW decided to strike, rather than to allow our employees to keep building trucks and engines while the parties continued to negotiate."

They go on to say that they are confident that they will arrive at an agreement that provides competitive wages and benefits while ensuring the company's competitiveness. The president of the local union says he and his workers want to negotiate that ASAP.

"We'd like to get back to work, we want to build trucks," Smith said.

In the meantime, they say their workers are prepared to be out of work.

As for a timeframe, the union says it is not scheduled to negotiate again until October 21.