DAMASCUS, Syria — Family members of a Lebanese man held by Syrian rebels say they have captured more than 20 Syrians and will hold them until their relative is freed.

The Lebanese prisoner Hassane Salim al-Mikdad appeared in a video released by rebels saying he is a member of Hezbollah, the Lebanese Shiite militant group allied with Iran and Syria. He said he was sent to Syria to fight with regime forces.

Hezbollah denied al-Mikdad is a member and the family says he has been living in Syria for more than a year.