Russia has sent advanced anti-ship cruise missiles to Syria, The New York Times reports.
American officials told the US-based paper that the most recent shipment from Russia contains an advanced radar system that makes them more effective.
The weapons, called Yakhonts, could enable the Assad regime to counter any international attempts to impose a naval embargo, or establish a no-fly zone, according to experts.
More top news
Donald Trump has given himself a "10 out of 10" for the response to the widespread hurricane devastation Puerto Rico suffered.
Police in Los Angeles have opened an investigation after another sexual assault allegation was made involving Harvey Weinstein.
The cost of childcare for young children has increased up to seven times faster than wages over the past few years, a new study reveals.