The Israeli military says it struck the central headquarters of Hezbollah in Beirut. A series of explosions Friday evening were the most powerful yet seen in the Lebanese capital the past year, leveling multiple buildings and sending up a massive billowing cloud of smoke. Three major Israeli TV channels said Hezbollah leader Hassan Nasrallah was the target of the strikes. But the unsourced reports could not immediately be confirmed by The Associated Press, and the army declined comment. To a degree unseen in past conflicts, Israel this past week has aimed to eliminate Hezbollah’s senior leadership. Prime Minister Benjamin Netanyahu’s office says the Israeli leader was cutting short a visit to the U.S. and returning home.