Russia has told the United States it regrets Washington's opposition to letting its inspectors take part in an investigation into a chemical weapons attack in Syria earlier this month, the foreign ministry said Friday.
It said Foreign Minister Sergei Lavrov spoke by phone to U.S. Secretary of State Rex Tillerson and the two sides agreed to consider one more time an "objective investigation into the incident" under the aegis of the Organization for the Prohibition of Chemical Weapons
