Syrian fighter jets struck villages and sites associated with the opposition forces late Friday morning, in the Quneitra region of the Golan Heights.

The attacks on Quneitra, the only crossing along the Israeli-Syrian border in the Golan Heights, raised concerns in Israel, reports Channel 10.

In response, the IDF stepped up preparations along the border, and sent out IAF planes to provide an air presence in the area and deter any encroachments on Israeli sovereign airspace.

The sites struck by Syria include a refugee camp in the Daraa region of southern Syria, which was being built by rebel forces opposing Syrian President Bashar Assad’s regime.

Arabic media sources have reported that Assad’s regime views the rebel refugee camp as a “declaration of local independence,” leading to the strike to destroy the site.

The Quneitra crossing was recaptured by Syrian army forces last June after briefly falling into opposition hands.

More recently, the Syrian border has been less than quiet. In mid March, Syria claimed IAF airstrike killed one soldier and injured seven. Assad’s army slammed the strike, threatening that “all options are open.”

The IAF airstrike targeted artillery batteries and a Syrian army training camp which had aided in the detonation of an explosive charge on the Israeli-Syrian border, which injured three IDF soldiers.

Defense Minister Moshe Ya’alon at the time warned Assad that he would “regret his actions” in threatening Israeli security, by allowing terrorists a free hand