House GOP demands Mayorkas brief on potential security risks at US ports related to China-made cranes

Republicans want answers from Homeland Security Secretary Alejandro Mayorkas on potential security vulnerabilities at U.S. ports related to the use of Chinese-manufactured cranes.

House China Select Committee Chairman Mike Gallagher, R-Wis., and House Homeland Security Committee Chairman Mark Green, R-Tenn., sent another letter to Mayorkas Friday, sounding the alarm on the use of China-made cranes at U.S. ports, warning of "cyberattacks, espionage, and supply chain vulnerabilities." Brooke Singman is a Fox News Digital politics reporter. You can reach her at Brooke.Singman@Fox.com or @BrookeSingman on Twitter.

"We remain concerned about the security risks associated with the widespread use of Chinese-manufactured cranes that threaten to undermine our national security, particularly those made by Shanghai Zhenhua Heavy Industries (ZPMC), a Chinese state-owned business whose governing shareholder is China Communications Construction Company," they wrote, demanding information "on the prevalence of such equipment and technology at U.S. ports and DHS actions to address the potential national security threats posed by the Chinese Communist Party’s use of this technology in U.S. port infrastructure."