Militants belonging to the extremist Islamic State group on Thursday kidnapped a Lebanese man from the eastern border town of Arsal, media reports said.
The reports identified the abductee as Mohammed Ahmed al-Hujeiri, saying he was taken to an unknown destination.
The incident comes a day after the Lebanese army shelled IS posts in the outskirts of Arsal, Ras Baalbek and al-Qaa.
Militants from the IS and the rival Fateh al-Sham jihadist group are entrenched in rugged areas along the Lebanese-Syrian border.
The two groups overran Arsal in 2014 before being ousted by the army after days of deadly battles.
The retreating militants abducted dozens of troops and policemen of whom four were executed and nine remain in IS' captivity.