Syrian warplanes pounded a rebel-held area of Homs on Friday in the heaviest bombardment of the city for months, monitors said, after the UN condemned the army's deadly shelling of a Turkish border town. Calm returned to the border, and although Ankara's parliament approved further action in Syria after Turkish artillery hit back at Syrian army positions, Prime Minister Recep Tayyip Erdogan said there were no plans to go to war. Syrian Observatory for Human Rights director Rami Abdel Rahman said the bombardment of Khaldiyeh district was the most intense of Homs in five months, and the first time the regime has deployed fighter jets against the city. Activist network the Syrian Revolution General Council said a series of large explosions rocked the neighbourhood after the bombing raids. The Observatory reported five civilians and one rebel killed in the central city and province of Homs, giving an initial death toll of 54 nationwide -- including 28 soldiers, 14 civilians and 12 rebel fighters.