DAMASCUS, Syria (AP) — Syrian President Bashar Assad's political adviser accused Turkey on Thursday of committing "aggression" against the country by allowing rebels to cross into the Syrian Kurdish border town of Kobani to battle the Islamic State group. The remarks came a day after Turkey allowed 50 armed Free Syrian Army members to cross into embattled Kobani in a push to help Kurdish fighters turn the tide against militants of the Islamic State group besieging the town. The group's political leadership is based in Turkey, where fighters often seek respite from the fighting.