It said that the transit was "ongoing" and that there had been "no interference from foreign military forces so far."
Biden's political opponents, in particular the opposition Republican Party, were quick on slamming the president.
The US president in the last several weeks has been very critical of China's inability to control the spread of the novel coronavirus within its territory. By Thursday more than 94,000 Americans have died due to the coronavirus and over 1.6 million have tested positive.
The US hopes that the differences will be resolved peacefully, officials said in Washington.
The names of two Indian-Americans -- Seema Verma and Bobby Jindal -- have emerged as possible candidates.
Pai is the fourth Indian-American to become part of Trump's administration.