A defense ministry official, cited by state news agency SANA, said the tunnel was located near the village of Hosh Al-Sayyid Ali, west of Homs, and had been used by what the statement described as “Lebanese militias.”

The military has since sealed the passage.The closure comes as Syrian and Lebanese authorities step up efforts to curb smuggling across their porous border, particularly in mountainous regions that have long facilitated illicit trade and movement of goods and fighters.

Eastern Lebanon, adjacent to the Syrian border, is a stronghold of Hezbollah, the Iran-backed group currently engaged in hostilities with Israel.shifting regional dynamicsHezbollah had played a key role in supporting former Syrian president Bashar Assad during Syria’s civil conflict.

Following his overthrow in December 2024 by an Islamist coalition opposed to the group, key supply routes between Syria and Lebanon have been disrupted.

Authorities on both sides of the border have since moved to dismantle smuggling networks, reflecting broader shifts in regional alliances and security priorities.

No further details were provided on the scale of the tunnel or whether arrests were made in connection with its use.