Tensions flared during Trump's visit to Beijing on Thursday as Chinese officials tried to disarm one of his Secret Service agents outside an historic site, according to reports.The New York Post described the scene outside the Temple of Heaven, where "Chinese officials refused to admit a Secret Service agent accompanying the presidential press pool into the secure area because the agent was carrying a firearm."With a press pool around them, the agent refused to disarm, and the American delegation didn't want to leave one of their own behind, which led to "the Chinese version of a Mexican standoff," the Post wrote. "After a thirty-minute delay and many arguments, another Secret Service agent who had already been cleared to proceed was summoned to escort reporters inside while the first agent stayed behind."Fox News reporter Peter Doocy described it as a "very physical standoff." He also suggested it wasn't an isolated incident, adding that "there have been some heated and physical clashes between the Secret Service and the Chinese police at basically the backdoors of these events."