South Lebanon has seen intense fighting between Israel and Hezbollah militants whose group holds sway in the area.

A soldier "died of his wounds sustained due to the Israel army targeting of an army vehicle" in south Lebanon, a statement on X said, after reporting two personnel wounded in the incident near Qlayaa in south Lebanon.

On Tuesday, the military said three soldiers were killed when "the Israeli enemy targeted an army position in the town of Sarafand", where the health ministry said eight people were wounded.

AFP images showed destruction at the site in Sarafand on the Mediterranean coast, some 40 kilometres (25 miles) from the southern border, with a concrete structure destroyed and a vehicle among the debris.

Since September 23, Israel has ramped up its bombing campaign in Lebanon, later sending in ground troops, after almost a year of cross-border exchanges begun by Hezbollah in support of its Palestinian ally Hamas.

South Lebanon and the capital have seen heavy strikes in recent days, though the situation was calmer in Beirut on Tuesday and Wednesday, with US envoy Amos Hochstein visiting for truce talks.

Lebanon's official National News Agency reported Israeli shelling and air strikes in south Lebanon overnight and on Wednesday, saying Israeli troops were seeking to advance further near the town of Khiam.

Hezbollah on Tuesday said it had attacked Israeli troops near the flashpoint border town.

The NNA also said that Israel forces were "attempting to advance from the Kfarshuba hills... to open up a new front under the cover of fire and artillery shells and air strikes".

"Violent clashes are taking place" between Hezbollah and Israeli forces, it added.

Hezbollah said it carried out several attacks on Israeli troops near the border Wednesday.

On Tuesday, it claimed more than 30 attacks on troops, positions and locations in central and northern Israel and south Lebanon.