KANSAS CITY, Mo. — Blue Cross Blue Shield of Kansas City is pulling out of the federal health care exchanges in Kansas and Missouri next year because of mounting financial losses.

The company’s announcement Wednesday makes it just the latest insurer to drop out of the government-backed marketplaces that were a pillar of the Obama-era federal health care overhaul law. The nation’s third-largest insurer, Aetna, announced earlier this month that it will completely leave the exchanges for 2018.

Blue KC President and CEO Danette Wilson said in a statement that the company had lost more than $100 million on the exchanges through 2016 and described the losses as “unsustainable.” The exchanges began operating in 2014.

The release says about 67,000 members in western Missouri, as well as Johnson and Wyandotte counties in eastern Kansas, would be affected.

Blue Cross Blue Shield of Kansas, a distinct company that serves the other 103 counties in the state, will continue to remain in the federal marketplace, according to a statement on its website.

“The announcement made by BlueKC regarding its plan to withdraw from the individual marketplace in 2018 does not impact Kansans who have purchased plans through Blue Cross and Blue Shield of Kansas,” Blue Cross Blue Shield of Kansas said in the statement. “Our intention is to continue to sell ACA-compliant plans for 2018.”

Correction: A previous version of this story included a photo of the wrong Blue Cross Blue Shield company. Blue Cross Blue Shield of Kansas City is pulling out of the health care exchanges. Blue Cross Blue Shield of Kansas, which was mistakenly pictured, will remain in the federal health care exchange in Kansas.