Amnesty International on Thursday called for Israeli attacks on Lebanon to be investigated as war crimes, revealing that some of the strikes wiped out entire families.

Israel launched major airstrikes and a ground invasion on Lebanon after Hezbollah joined the Middle East war on March 2 on the side of Iran.

Israeli attacks since have killed more than 4,300 people, according to Lebanese authorities, including more than 250 children.

Amnesty analyzed three strikes on civilian homes between March 6 and 13, in which 24 civilians were killed, 12 of them children.

The London-based rights group accused Israel of "wiping out families" in those strikes and called for them to be treated as "war crimes."

The group said it reached out to Israeli authorities, who said that some of the attacks "were carried out against Hezbollah military objectives," while others were "referred for examination."

The authorities told Amnesty they were "committed to mitigating harm to civilians during operational activity."

"Despite follow-up, the Israeli military did not provide specific information regarding the three attacks ... including what the targets may have been," Amnesty added.

Its findings in the investigation were based on interviews with 15 people, including survivors, relatives, paramedics, journalists who visited attack sites and local officials.

"Based on the evidence gathered, in each of these air strikes, Amnesty International has reasonable basis to conclude that Israeli forces violated international humanitarian law, including by failing to distinguish between civilians and military objectives, by carrying out attacks directed against civilians or civilian objects, or by failing to take all feasible precautions to minimise harm to civilians," the report read.

Kristine Beckerle, Amnesty's deputy regional director for the Middle East and North Africa, said that "within the space of just a week – the Israeli military obliterated entire families, including a dozen children, in Lebanon, demonstrating a callous disregard for civilian lives."

"States must impose an immediate comprehensive arms embargo on Israel and use universal and extraterritorial jurisdiction to investigate and prosecute those responsible," she added.

Israel's Defense Minister Israel Katz said, in a statement Thursday, that the military's operations in Lebanon were a response to attacks by Hezbollah.

"... Hezbollah has attacked Israel twice on its own initiative," Katz said, without specifying whether he was responding to Amnesty's report.

"Israel responded with force and, over the past 2 1/2 years, has crushed most of Hezbollah's capabilities and its leadership," adding that Israeli forces would remain in their self-declared "security zone" inside Lebanon "as long as necessary" to protect Israel's northern communities.

Last month, Lebanon and Israel concluded a U.S.-backed framework agreement aiming to pave the way for a permanent end to hostilities.

It was preceded by a memorandum of understanding between Iran and the United States to end the broader Middle East conflict, which included a cease-fire in Lebanon.

Despite this, Israel still carries out intermittent strikes on southern Lebanon, some of them deadly.