The TV station of Lebanon's militant Hezbollah group says its fighters have shelled positions of the Islamic State group in an area near the Syrian border, killing five.

Al-Manar TV said the shelling occurred Friday on the outskirts of the Lebanese border village of Ras Baalbek, where IS fighters and Syria's al-Qaida affiliate, known as the Nusra Front, are active.

The Lebanese army frequently shells the militants' positions in the border area, while Hezbollah fighters have confronted them on the Syrian side.

In August 2014, IS and Nusra Front seized some 20 Lebanese soldiers and police officers during a brief cross-border raid on the Lebanese border town of Arsal. The extremists have killed four of them and are still holding the rest.