Secretary of State Mike Pompeo has said the US is "certainly looking" at banning Chinese social media apps, including TikTok, days after India blocked the popular video-sharing platform.

In an interview with Fox News' Laura Ingraham on Monday, Pompeo said he and President Donald Trump are taking the reports seriously after he was told by the host that India had already banned the app and Australia is considering doing so. "We are taking this very seriously and we are certainly looking at it. We have worked on this very issue for a long time, whether it's the problem of having Huawei technology in your infrastructure — we've gone all over the world and we are making real progress getting that out — we had declared ZTE a danger to American national security," Pompeo said.