Israel's military struck Beirut's southern suburbs on Sunday, hitting apartments in two buildings, after saying it had intercepted projectiles launched by Hezbollah into Israeli territory.

Israel and Hezbollah regularly exchange fire but the south of the capital -- including districts seen as bastions of the Iran-backed group -- has been relatively spared, having been struck only twice since mid-April.

Israel later issued an evacuation warning for most of the southern Lebanese city of Tyre and its surroundings, a more frequent site of strikes.