Israel hits Lebanon with its largest wave of airstrikes since agreeing to a ceasefire with Hezbollah, as both sides accuse each other of violations.

Israel unleashed its largest wave of strikes on Lebanon since the 60-day ceasefire went into effect last week.

Hezbollah has claimed the first strike against Israel since a US-backed cease-fire plan came into effect less than a week ago, prompting Israeli officials to vow a strong response in the most serious threat so far to the truce with Lebanon.

The chance for an end to more than a year of fighting between Israel and Hamas in Gaza and the release of about 100 hostages held by the militants is now “more likely” because of last week’s ceasefire reached by Israel with Hezbollah in Lebanon,

The Biden administration is concerned the fragile ceasefire in Lebanon could unravel after Israel and Hezbollah exchanged fire in recent days, U.S. officials say. Why it matters: The ceasefire announced last Tuesday ended more than a year of fighting between Israel and Hezbollah.

U.S. officials are reportedly concerned that the ceasefire between Israel and Hezbollah could deteriorate less than a week after it went into effect. CBS News foreign correspondent Debora Patta is following the latest developments in the region.