The Israeli military said on Friday two projectiles were launched from Lebanon towards Israel's territory, adding they successfully intercepted one of the projectiles and the other landed in Lebanon itself.
"After the alert sirens went off, two projectiles were identified as coming from Lebanon. One was intercepted and the other fell in Lebanon," the Israeli military stated, according to news agency AFP.
Following the incident, Israel's defence minister Israel Katz issued a stern warning, threatening Israeli action in Beirut, Lebanon's capital.
"If there is no calm in Galilee districts, there will not be calm in Beirut," Katz said.
The projectile launches occurred shortly after Israeli strikes resulted in six casualties in southern Lebanon, with Israel claiming the strikes targeted Hezbollah operatives.
Israeli forces have continued their operations in southern Lebanon, despite a November agreement establishing a ceasefire between Israel and the Iran-supported Hezbollah following over a year of conflict.
The previous weekend witnessed the most significant breach of the truce, with Israeli strikes in the region resulting in eight deaths, according to Lebanese authorities.
Israel's raids were in response to rocket fire, the first to hit its territory since the ceasefire.
No party, including Hezbollah, has claimed responsibility for the rocket fire.
Under the ceasefire, Hezbollah was to pull its forces north of the Litani River, about 30 kilometres (20 miles) from the Israeli border, and dismantle any remaining military infrastructure in the south.
On the other hand, Israel was to withdraw its troops across the UN-demarcated Blue Line, the country's de facto border with Lebanon, but continues to hold five "strategic" positions in south Lebanon.