Officials in northeast Lebanon say a suicide car bomber has targeted an army checkpoint, killing at least three people.
Authorities say the blast happened Saturday in the Shi'ite-dominated town of Hermel.
The Nusra Front, a militant Sunni group, has claimed responsibility for the attack.
It said the assault was in retaliation for Hezbollah's involvement in the war in neighboring Syria.
Hezbollah is a Shi'ite militant group,