Washington, Shawwal 5, 1435, Aug 1, 2014, SPA -- US President Barack Obama told Russian President Vladimir Putin in a telephone call Friday that he has "deep concerns" about Moscow's support for Ukrainian separatists, dpa cited the White House as saying. Obama stressed the need for a diplomatic solution to the violence in Ukraine and expressed concern about Russian violation of a decades old arms-control treaty. The leaders agreed to keep their channels of communication open, the White House says. -- SPA 20:28 LOCAL TIME 17:28 GMT www.spa.gov.sa/1258903