China's military has expressed its "utmost indignation" over planned U.S. arms sales to Taiwan.
The Obama administration informed Congress on September 21 that it plans a $5.3 billion upgrade of Taiwan's F-16 fighter fleet.
China views Taiwan as an illegitimate breakaway territory.
A spokesman for China's Ministry of Defense said the move would damage "China's sovereignty and national security interests" and setback military ties between Beijing and Washington.
China's Foreign Ministry has also criticized the move.
compiled from Reuters reports