[April 21, 2016]RIYADH
(Reuters) - The United States is concerned about reports that Russia is
moving more military materiel into Syria, Ben Rhodes, deputy national
security adviser to President Barack Obama, said on Thursday.
He spoke at a
press briefing in Saudi Arabia's capital, Riyadh, where Obama
was attending a summit with Gulf Arab leaders to discuss
regional security issues.
(Reporting By Roberta Rampton, writing by Angus McDowall;
Editing by Larry King)