Columbus, Ind.-based engine maker Cummins Inc. says it has instituted a global hiring freeze for at least the rest of this year with an uncertain impact on announced expansions of Indiana operations.

According to The Republic, Columbus, the move by the company comes after seeing a recent drop in sales in some of its markets in North America, China and Brazil. The company said that it was taking necessary steps to manage growth by reducing costs.

Cummins has seen substantial growth in recent years and says it has a record worldwide work force of 46,200 people. Cummins has some 7,800 Indiana workers, including its facility in Columbus that builds motorhome engines.

Company spokesman Jon Mills said he couldn’t discuss how the freeze would affect expansions of its Columbus offices or a $219 million project at its Seymour, Ind., factory.