U.S lawmakers asked the Securities and Exchange Commission to curb Chinese companies' access to American financial markets, warning of security risks of China-linked companies.

Republican Senate banking committee chair Tim Scott and Democratic counterpart Elizabeth Warren flagged "the unique risks to national security, market integrity, and investor protection posed by SEC-registered entities" tied to China," according to a letter sent to SEC Chairman Paul Atkins sent Thursday.

The letter comes as concerns regarding U.S. capital being used to fund China's geopolitical interests are rising, the committee said in a Thursday press release.

The committee also flagged risks from what it calls "variable interest entities," which it says are opaque corporate structures set up by China to skirt around foreign ownership rules, the Financial Times reported separately.