China has tested a new version of a missile that can carry up to 10 nuclear warheads.
This is signalling a major shift in its nuclear capability as Beijing gears up for a possible military showdown with the US under Trump Presidency.
The flight test of the DF-5C missile was carried out last month using 10 multiple independently targetable reentry vehicles, or MIRVs.
The test of the inert warheads was monitored closely by U.S. intelligence agencies.
The DF-5 is a two-stage, liquid-fueled missile with a range of around 8,000 miles.
The missile was fired from the Taiyuan Space Launch Center in central China and flew to an impact range in the western Chinese desert.
The test of a missile with 10 warheads is significant because it indicates the secretive Chinese military is increasing the number of warheads in its arsenal, the website reported.
Estimates of China's nuclear arsenal for decades put the number of strategic warheads at the relatively low level of around 250 warheads.
U.S. intelligence agencies in February reported that China had begun adding warheads to older DF-5 missiles, in a move that has raised concerns for strategic war planners.
Uploading Chinese missiles from single or triple warhead configurations to up to 10 warheads means the number of warheads stockpiled is orders of magnitude larger than the 250 estimate.
Currently, U.S. nuclear forces - land-based and sea-based nuclear missiles and bombers - have been configured to deter Russia's growing nuclear forces and the smaller Chinese nuclear force.
Under the 2010 U.S.-Russian arms treaty, the United States is slated to reduce its nuclear arsenal to 1,550 deployed warheads.
A boost in the Chinese nuclear arsenal to 800 or 1,000 warheads likely would prompt the Pentagon to increase the U.S. nuclear warhead arsenal by taking weapons out of storage.
