China's foreign ministry denies knowledge of former diplomat Michael Kovrig's detention.

While China's commerce ministry is eager to reach a trade deal, the foreign ministry vows to protect Chinese citizens' rights.

Meng Wanzhou's arrest is just the latest example of an Iran fixation getting in the way of more important U.S. interests.

The Chinese foreign ministry summoned U.S. and Canadian ambassadors over Meng Wanzhou’s detention.