At least six rockets launched from the Syrian side of the border landed on Thursday on the outskirts of the town of Sarin in the eastern Bekaa Valley as President Michel Suleiman urged the army to retaliate against border assaults, the state-run National News Agency reported.

NNA said the attack did not cause any casualties after the rockets hit uninhabited areas.

But Voice of Lebanon radio (100.5) said several houses were damaged in the nearby town of Nabi Sheet where three rockets landed.

After the attack, Syrian warplanes raided the northeastern town of Arsal, NNA said.

They launched four rockets on the town's al-Smaili neighborhood, it added.

The planes carried out a second raid in Kherbet Younin in Arsal's outskirts, NNA said.

Arsal, which lies 12 kilometers from the border with Syria, has been used as a conduit for weapons and rebels to enter Syria, while also serving as a refuge for people fleeing the conflict.

Suleiman later held talks with Army Commander General Jean Qahwaji to discuss the raids, demanding that the army retaliate to them.

He stressed “the need to take the necessary measures to protect the people and Lebanese towns against assaults.”