Lebanese militant group Hezbollah claims to have launched more than 200 rockets and drones targeting Israeli military positions on Thursday in response to the killing of a senior commander.

A Hezbollah source told Al Jazeera that Thursday's barrage, the second major attack in as many days, was retaliation for Israel's killing of Muhammad Nasser in southern Lebanon a day earlier. His death prompted Hezbollah to launch more than 100 rockets into Israel on Wednesday. followed by Thursday's barrage.

Nasser, also known as Hajj Abu Nimah, was the third high-ranking Hezbollah fighter killed in almost nine months of cross-border fighting sparked by the Israeli war in Gaza.

Reuters cited the Israeli military as giving a similar assessment of the scale of the attack, stating that "200 projectiles and over 20 suspicious aerial targets were identified crossing from Lebanon into Israeli territory," a number of which were intercepted by Israeli air defenses and fighter jets. No casualties were reported.

Israeli Defense Minister Yoav Gallant said on Wednesday that the country's forces were hitting Hezbollah "very hard every day" and will be ready to take any action necessary against the group. However, Israel's preference is reportedly to reach a negotiated arrangement.

Meanwhile, senior Hezbollah official Hashem Safieddine has warned that the group would increase its strikes against Israel.

"The series of responses continues in succession, and this series will continue to target new sites that the enemy did not imagine would be hit," Safieddine said at an event in Beirut commemorating the killed commander.

The growing tensions between Israel and Iran-backed Hezbollah have been causing concern of an escalation into an all-out war in the Middle East.