LONDON — PSA Group, the maker of Peugeot and Citroën automobiles, said on Tuesday that it was in discussions about a potential acquisition of the European brands Opel and Vauxhall from General Motors, a deal that would give PSA much greater scale in a region that accounts for a majority of its sales.

Based in Paris, PSA confirmed the talks after news reports emerged about a possible deal.

“PSA Group confirms that, together with General Motors, it is exploring numerous strategic initiatives aiming at improving its profitability and operational efficiency, including a potential acquisition of Opel/Vauxhall,” the company said in a news release.

G.M. also confirmed the talks.

The acquisition of Opel and the affiliated Vauxhall brand in Britain could bolster PSA’s fortunes in Europe, which accounted for about 61 percent of sales last year.

PSA sold 3.1 million vehicles worldwide last year, up nearly 6 percent from the 2.9 million it sold in 2015.

PSA and G.M. announced an alliance in 2012 to save costs through joint purchases and the building of some vehicles together. G.M. took a 7 percent stake in PSA at the time but sold it the next year as PSA’s finances worsened. The French government owns a roughly 14 percent stake in PSA after injecting capital into the automaker in 2014.

PSA and G.M. continue to jointly produce some vehicles.

News of the merger talks came as G.M. reported that its European division had posted a loss of $257 million in 2016, an improvement from a loss of $813 million the year before.

American automakers also face pressure from the Trump administration to build more cars in the United States.

Adam Opel founded Opel in Rüsselsheim, Germany, in 1862, and General Motors acquired an 80 percent stake in the company in 1929. Opel employs about 35,000 people worldwide. It sold 1.2 million vehicles last year.