By Reuters Staff 2 Min Read FILE PHOTO: The U.S. Department of the Treasury is seen in Washington, D.C., U.S., August 30, 2020. REUTERS/Andrew Kelly WASHINGTON (Reuters) - The United States on Tuesday slapped fresh sanctions on Syria, targeting its central bank and blacklisting several people and entities in a continued effort to cut off funds for President Bashar al-Assad’s government. The latest action, building on sanctions imposed on Syria earlier this year, marked another round in a U.S. campaign to push Assad’s government back into U.N.-led negotiations to end the country’s nearly decade-long war.