WASHINGTON—China released three Americans who had been imprisoned there for years, part of a complex series of deals the Biden administration has reached to bring home U.S. citizens from countries with which the U.

Three Americans detained in China were released under a surprise prisoner swap deal between Beijing and Washington. The deal came less than two months before President-elect Donald Trump assumed the O

Mark Swidan, Kai Li and John Leung were the final remaining Americans the National Security Council deemed wrongfully detained in China.