Ismail Haniyeh, who leads the Palestinian Hamas that rules the Gaza Strip, arrived in Beirut already on Wednesday.
Israel accuses Hamas of firing 34 rockets from southern Lebanon – where Hezbollah has its strongholds – at Israel the following day.
During Haniyeh’s meeting with Hezbollah leader Hassan Nasrallah, cooperation between Lebanese, Palestinian, Syrian and other Iran-backed groups that have in common that they are in conflict with Israel was discussed, writes AFP.
Hamas, which has ruled Gaza since 2007, is labeled a terrorist by, among others, the EU. Hezbollah, which is an Islamist Shia Muslim movement in Lebanon with close ties to Iran, is labeled a terrorist by the United States. The movement’s armed branch is also labeled a terrorist by the EU.