Israeli aircraft attacked a position of the fundamentalist movement Hezbollah at Al-Tireh, in the Bent Jbail region near the Israeli frontier in south Lebanon.
The planes carried out two successive sweeps and fired a total of four air-to-ground missiles on the position, a former stronghold of the now-disbanded Israeli allied South Lebanon Army militia, Lebanese police said.
In a statement sent to AFP in Jerusalem, the Israeli army said the airforce “targeted and destroyed a Hezbollah outpost in the western sector of southern Lebanon” hours after the Lebanese group fired across the border into Israel.
Ambulances were seen rushing to the site, but a medical source told AFP that the raids did not inflict casualties. A Hezbollah spokesman refused to comment.
Lebanese police said Israeli warplanes continued to fly over the area and the nearby coastal region of Tyre, some 80 kilometres (50 miles) south of Beirut, for about an hour after the raids before heading back to Israel.
Earlier Sunday, Israeli warplanes violated Lebanese airspace, causing supersonic booms over a southern region and triggering retaliatory anti-aircraft fire, Lebanese police said.
The jets broke the sound barrier near the southern coastal town of Naqura, where UN peacekeepers have their headquarters just a few miles (several kilometres) from the frontier, they said.
The warplanes entered Lebanese airspace further east where they drew four bursts of machine gun fire, police said, declining to specify whether it came from the Lebanese army or the Shiite Muslim Hezbollah.
But Israeli military sources said the fire came from Hezbollah, adding that shrapnel fell in the border area of Shomra, 20 kilometers from the coast.
Contacted by AFP, a Hezbollah spokesman declined to comment.
Last week, UN representative Staffan de Mistura condemned Israel for its repeated violations of Lebanese airspace and warned that continued overflights could stoke tension in the region.