Lebanese Interior Minister Nohad Machnouk warned kidnappers of Lebanese military men that they are putting the lives of 1.5 million Syrians in Lebanon in danger with their acts and threats.
He warned that Arsal was still a "time-bomb ready to explode anytime," Al-Nahar newspaper reported.
Before retreating earlier this month toward Syrian territory, the militants, including fighters of the so-called Daesh group, took with them some 28 captured Lebanese soldiers and police.
On Friday, they posted photos purporting to show one of them, Sergeant Ali Sayid, beheaded. The photos sparked a protest in northern Lebanon by families of the kidnapped soldiers.