Israel has carried out multiple air strikes on Lebanon after several rockets were fired from Lebanon into Israel, in the worst violence since a ceasefire came into effect in November, BBC reported.

The Israeli military said it had hit dozens of rocket launchers and a command centre belonging to Hezbollah, the Iranian-backed militia and political group, in southern Lebanon.

Lebanon's health ministry said seven people, including a child, were killed and 40 injured in the air strikes.

Several armed groups operate in Lebanon, including Hezbollah and Palestinian factions, and no-one has claimed responsibility for the attack.

Hours after the first set of strikes, a second wave of attacks were carried out at night on targets that included what the Israeli military described as command centres, infrastructure sites and a weapons storage facility in Lebanon.

Saturday's rocket attack from Lebanon came days after Israel reinforced its offensive against Hamas, a Hezbollah ally, in Gaza, according to BBC.

The Israeli military said it had intercepted three rockets in the northern Israeli town of Metula, and there were no casualties.

Hezbollah said it had no involvement, and it remained committed to the ceasefire.