Hezbollah carried out an attack on Monday against Israeli targets on Lebanon's southern border, according to a source from the organization speaking to Anadolu Agency on condition of anonymity.
Earlier, Israel had announced that a security incident had taken place on the border, without further details.
"A little while ago, there were reports of a security incident in the area of Jabal Ros," Avichai Adraee, a spokesman for the Israeli army, said in a statement.
"The details are yet to be examined," he added.
In a speech to lawmakers, Israeli Prime Minister Benjamin Netanyahu said: "We are constantly following what is happening on our northern borders. Our policy is clear: We will not allow Iran to gain a military position on our borders with Syria."
"Lebanon and Syria bear the responsibility for any aggression launched from their lands against us [...] The army is ready for all scenarios. We are working on all areas for the security of Israel, near and far from our borders."
This comes as the Israeli army continues to be on alert along the country's northern frontier in anticipation of retaliatory attacks by the Lebanese Hezbollah organization.
Hezbollah has vowed to respond to the killing of one of its members in an air strike believed to have been launched by Israel, on a site near the Syrian capital, Damascus.
In the past few days, the Israeli army announced it would deploy military reinforcements to the border with Lebanon.
*Zehra Nur Duz contributed to the story from AnkaraAnadolu Agency website contains only a portion of the news stories offered to subscribers in the AA News Broadcasting System (HAS), and in summarized form. Please contact us for subscription options.