Three civilians were injured Tuesday in an Israeli drone strike on the southern town of al-Majadel in the Tyre district, as relative calm returned following a heavy exchange of strikes between Israel and Hezbollah on Sunday.

A fourth civilian was moderately injured in a strike on Shihine, the Health Ministry said.

U.S. army chief Gen. CQ Brown and Israeli army chief Herzi Halevi made a joint visit Monday to the Israeli military’s Northern Command headquarters, a day after a major flare-up between Hezbollah and Israel.

“The commanders held a situational assessment in the IAF Operational Command Center yesterday (Sunday). Today (Monday), the commanders visited the headquarters of the Northern Command, where they were presented with the ongoing combat against Hezbollah during the war and the operational plans for the future,” the Israeli army said.

Iran’s foreign ministry said Monday that Israel “failed to predict the time and place” of Hezbollah’s “limited and calculated attack” that “made it lose its deterrence,” referring to Hezbollah’s retaliation on Sunday to the assassination of its military chief Fouad Shukur.

Fighting resumed Monday after a short-lived calm following a heavy exchange of strikes between Israel and Hezbollah.

Israeli strikes targeted Monday the southern border village of Tayrharfa and the coastal city of Sidon. A car was hit in the latter strike near Abra's entrance.

After an emergency government meeting on Sunday, Lebanon’s caretaker Economy Minister Amin Salam said officials were “feeling a bit more optimistic” about a de-escalation between Israel and Hezbollah.

“We feel more reassured since both sides confirmed that the expected operations ended,” he said, referring to Sunday morning's heavy exchange of hostilities between Israel and Hezbollah.

Hezbollah chief Sayyed Hassan Nasrallah on Sunday announced that Hezbollah’s attack on Israel on Sunday morning had targeted an intelligence base just outside Tel Aviv and an air defense base in the heart of Israel.

“We targeted the Glilot military intelligence base near Tel Aviv, around 110 kilometers from Lebanon's border,” said Nasrallah in a speech dedicated to explaining Hezbollah’s response to the killing of its top military chief Fouad Shukur, who was assassinated in an airstrike on Beirut’s southern suburbs around a month ago.

Israel has told foreign parties that it moved to thwart a major Hezbollah attack on Sunday morning and that it does not intend to “turn that into a broad war,” the Israel Hayom newspaper said.

U.N. Special Coordinator for Lebanon Jeanine Hennis-Plasschaert and the U.N. Interim Force in Lebanon (UNIFIL) on Sunday called on Israel and Hezbollah to “cease fire and refrain from further escalatory action,” in light of the “worrying developments across the Blue Line since the early morning.”

Israeli Prime Minister Benjamin Netanyahu vowed Sunday "to do everything" to ensure the security of residents of northern Israel after the military launched massive air strikes against Hezbollah targets in southern Lebanon and the Lebanese group said it had avenged the killing of its military chief Fouad Shukur.

"We are determined to do everything to protect our country, return the residents of the north safely to their homes and continue to follow a simple rule: whoever hurts us, we hurt them," Netanyahu said in a statement issued by his office.

Hezbollah said its chief Sayyed Hassan Nasrallah will speak later Sunday after the Lebanese group announced it had launched a large-scale attack on Israel in response to Fouad Shukur's assassination, and Israeli forces struck Lebanon.

Nasrallah will speak at 6:00 pm (1500 GMT), addressing "the latest developments," a statement from the group said.