DAMASCUS  A Syrian government daily on Sunday accused the United States of having "thrown oil on the fire" of the country's conflict by doubling its aid to the opposition."The meeting of the so-called 'Friends of Syria' held in Istanbul yesterday has thrown oil on the fire of the Syrian conflict," said Al-Watan.The United States announced at the meeting in the Turkish city that it would double its aid to Syria's opposition, including with new non-lethal military equipment, but paid no heed to calls for arms supplies or a direct intervention.Secretary of State John Kerry said US assistance to the opposition would rise to $250 million. Some of the money will be used to "provide an expanded range of support" to rebel fighters battling President Bashar al-Assad, beyond the current provisions of food rations and medical kits, "to include other types of non-lethal supplies." But the pledge fell short of opposition demands for foreign backers to supply the rebels with arms, impose a no-fly zone and carry out air strikes on positions used by the Assad regime to launch missiles."The results of the meeting were known in advance with the American statements made last week on providing new aid to the opposition," Al-Watan said. "The statements were not surprising, given that Washington has opted since the start of the crisis to line up with armed groups by giving them political, financial and military support," it said.Troops loyal to Syrian President Bashar al-Assad made new advances Sunday on the rebel stronghold town of Qusayr near the border with Lebanon, reports said.Activists say the army, backed by pro-regime militia and the Lebanese Shiite movement Hezbollah, is aiming to crush insurgents in villages surrounding Qusayr, and to then launch an assault on the town itself. Three new shells launched from the Qusayr area landed in eastern Lebanon, the official National News Agency reported, in what rebels described as retaliation for Hezbollah's involvement in Syria's war and for allegedly firing from across the Lebanese border.Two of the shells hit the outskirts of the town of Hermel and the other hit the Qasr area, said the Lebanese agency.German Foreign Minister Guido Westerwelle on Sunday said Berlin will have no choice but to accept the lifting of an EU arms embargo on Syria if other European countries push for it.In the meantime, Syria's National Coalition head Ahmad Moaz al-Khatib has refiled his resignation and an interim leader is being sought, a fellow member and a source close to the main opposition group said on Sunday.Khatib insists on resigning, almost a month after first announcing he was stepping down and two weeks before NC leadership elections are scheduled to take place.Meanwhile, a US man allegedly planning to engage in terrorism in Syria was arrested at a Chicago airport after months of surveillance, the FBI said Saturday.There is "no connection between this case and the events that occurred over the last several days in Boston," the Federal Bureau of Investigation said in a statement.Agents had been monitoring Abdella Ahmad Tounisi, 18, for some time due to his friendship with a man who was arrested in September after a botched attempt to detonate a bomb outside a Chicago bar.