WARSAW (Reuters) - Poland has attracted a major investment in its automotive industry from the United States and it is also in talks with Toyota <7203.T> on a potential new project in Poland, Deputy Prime Minister Mateusz Morawiecki said on Thursday.

"We have a decision on another, big investment, American one, in the automotive sector," Morawiecki said without providing more details.

He was speaking at news conference on Daimler's <DAIGn.DE> plans to build a 500 million euro engine plant in south-west Poland, which was announced in May.

The plant will make engines for Mercedes-Benz passenger cars.

Markus Schaefer, board member for production for Mercedes-Benz Cars, who was also speaking at the news conference, said that the plant in Jawor, around 70 kilometres west of Wroclaw, would hire 500 people.

At a separate event on Thursday, Morawiecki was asked whether Toyota also had plans to invest in Poland. "Talks are being held," he said.

(Reporting by Agnieszka Barteczko and Marcin Goettig. Editing by Jane Merriman)