The Israeli military announced on Friday that its fighter jets had conducted an overnight airstrike targeting a 3.5-kilometer-long tunnel running between Lebanon and Syria, which Israel claims was used by Hezbollah to smuggle Iranian weapons. 

According to the Israeli military, the tunnel was operated by Hezbollah's Unit 4400, a division responsible for the transfer of weapons from Iran and its regional proxies to Lebanon. A few days ago, the commander of Hezbollah’s Unit 4400 was killed in a targeted strike in Beirut.

The strike reportedly destroyed the tunnel, along with nearby buildings, weapon depots, and other related infrastructure used to facilitate the smuggling operation.

In a separate overnight attack, Israeli forces also struck "infrastructure" at the Masnaa border crossing between Lebanon and Syria, aiming to disrupt efforts to deliver Iranian weapons to Hezbollah through Syria. 

Earlier, Lebanon's Transport Minister Ali Hamiyeh told Reuters that Israel has severed a crucial road used by hundreds of thousands of people fleeing Israeli bombardments. 

The strike, which hit inside Lebanese territory close to the crossing, created a four-meter-wide (12 feet) crater, effectively cutting off the escape route.

The Masnaa crossing, located in Lebanon's Beqaa Valley along the Beirut-Damascus highway, is a major transport link between Lebanon and Syria. Over the past ten days, more than 300,000 people—mostly Syrian nationals—have used the crossing to escape the escalating Israeli attacks, as reported by Lebanese government sources.