General Motors is nearly doubling its workforce at Detroit-Hamtramck Assembly by adding a second shift and more than 1,200 hourly and salaried jobs.

The addition of a second shift will increase the plant's workforce to approximately 2,800 people when hiring is completed. The second shift is necessary to meet forecast market demand for the five car lines produced there, GM said.

"This is the result of the award-winning vehicles Detroit-Hamtramck produces and the confidence GM has in our team to build world-class quality for our customers," said plant manager Gary West.

Second shift hiring is underway, and the shift is scheduled to begin operations in early 2016.