Israeli warplanes have carried out new air strikes on Lebanon, targeting Hezbollah positions in the Baalbek and Nabatiyeh regions. The strikes come after days of escalating tensions between the two sides, following a cross-border attack that killed an Israeli soldier. Hezbollah has vowed to retaliate for the death of its operative in Syria, killed by Israeli airstrikes last week. The latest strikes have caused explosions and gunfire in the affected areas, and Lebanese media reports of casualties.