Explosion heard in Hezbollah stronghold in Beirut CNN 0 72 07.31 02:33 https://www.youtube.com/watch?v=ErMsMa37UPk + 13 https://www.youtube.com/feeds/videos.xml?channel_id=UCupvZG-5ko_eiXAup… + 13 Explosion heard in Hezbollah stronghold in Beirut