What is the fine-grained topic of the following text: Syrian air crafts have dropped dozens of ‘barrel bombs’ in several areas of the country, many of them in northern Syria, areas that includes Al Raqqa, the capital of the same-named province, as well as the towns of Binsh, Al Abit, Khan Shaykhun, Saraqib and province of Aleppo. Only return the topic.
Syrian aircrafts dropping 'barrel bombs' in various areas of the country