The U.S. Department of Justice is ramping up its case against Google’s alleged monopoly, suggesting the government could eventually force the company to sell its widely-used Chrome browser. The move is part of the DoJ’s push to challenge Google’s hold over the digital advertising and search engine markets.

The Justice Department’s latest legal action accuses Google of engaging in anticompetitive behavior by unfairly using its dominance in search and advertising to prop up its other services, most notably Chrome. The government argues that Google’s browser and vast data ecosystem have given the company an outsized advantage over competitors, stifling innovation and harming consumers. By bundling Chrome with its Android operating system, Google has built an extensive network that could limit consumer choice and make it difficult for smaller firms to compete.