An Israeli soldier is stationed near the northern Israeli Kibbutz of Malkia along the Lebanese border. File/AFP

Lebanon's Hezbollah movement said on Sunday it launched its "largest" air operation, sending explosive drones at a mountaintop Israeli military intelligence base in the annexed Golan Heights.

It is the latest incident among escalating cross-border exchanges of fire that have triggered global alarm.

Hezbollah, an Iran-backed Hamas ally, has traded almost daily fire with Israeli forces since the Palestinian group's October 7 attack on Israel triggered war in the Gaza Strip.

Announcing "the largest operation" carried out by its aerial forces, Hezbollah said in a statement that its fighters sent "multiple, successive squadrons of drones to target the reconnaissance centre" on Mount Hermon.

The Israeli military said an explosive drone "fell in an open area in the Mount Hermon area" but there were "no injuries".

Attacks as well as rhetoric have escalated in recent weeks, spurring fears of an all-out conflict between Israel and Hezbollah which last went to war in 2006.

The Lebanese movement said the drone attack was part of its "response" to the killing of an operative in a strike Saturday deep into east Lebanon around 100 kilometres (60 miles) from the border.

The Mount Hermon attack targeted intelligence systems, "destroying them and starting a major fire", Hezbollah said.

Israeli Defence Minister Yoav Gallant visited troops on Mount Hermon earlier on Sunday, his office said.

Agence France-Presse