Hezbollah fired into a disputed border zone held by Israel on Monday. The militant group said the volley, its first during the truce, was a warning shot in response to what it called repeated Israeli truce violations.
Israeli leaders threatened to retaliate and within hours, Israel's military carried out its biggest wave of strikes in southern Lebanon. Lebanon's Health Ministry said an Israeli airstrike on a village killed five people, while another airstrike killed four. Israeli strikes had already killed two people on Monday before the Hezbollah attack.
Both sides accuse each other of violating the ceasefire, which began Wednesday. Israel says that under the truce deal it reserves the right to retaliate for Hezbollah violations.
Hezbollah began launching its attacks on Israel last year in solidarity with Hamas militants who are fighting in the Gaza Strip. The war in Gaza began when Hamas-led militants stormed into southern Israel, killing some 1,200 people, mostly civilians, and taking around 250 people hostage.
Israel's blistering retaliatory offensive has killed at least 44,429 Palestinians, more than half of them women and children, according to Gaza's Health Ministry, which does not say how many of the dead were combatants. Israel says it has killed over 17,000 militants, without providing evidence.
The war in Gaza has destroyed vast areas of the coastal enclave and displaced 90% of the population of 2.3 million, often multiple times.
Bernie Sanders says Israel is ethnically cleansing Gaza
WASHINGTON — U.S. Sen. Bernie Sanders says Israel ''is committing war crimes & ethnic cleansing in Gaza.''