The America Online (AOL) -TimeWarner merger may face opposition from regulators.

The Federal Trade Commission is concerned that the merger could create a monopoly that could control the Internet. As such, it’s preparing to block the merger of America Online and Time Warner, according to a report in The Washington Post.

The newspaper reported in its Monday edition that US Federal Trade Commission (FTC) attorneys want to ensure the post-merger giant will open access to its high-speed cable lines to competing content-providers.

According to the report, FTC officials are worried that in markets where Time Warner operates cable television systems, consumers could be forced to accept exclusively AOL-Time Warner-controlled content in order to get high-speed Internet access.

AOL maintains it’s committed to open access, citing a recent deal giving Juno Online Services access to its cable lines, according to the report.