Lebanese Prime Minister Fouad Seniora on Saturday expressed his rejection both to Israeli violation of Lebanon's sovereignty and Lebanese retaliation by launching rockets into northern Israel, the official National News Agency (NNA) reported.

"Lebanon is committed to the implementation of UN resolution 1701," though the Israeli shelling on South Lebanon is "a rejected violation" of his country's sovereignty, Seniora was quoted as saying.

Seniora made the remarks after a rocket slammed into northern Israel early Saturday morning from South Lebanon, prompting an Israeli responds of shelling back into the Lebanese areas.

"The rockets launched from South Lebanon (into Israel) threatens security and stability in the region and violates (UN) resolution 1701" that ended 34-day devastating war between Israel and Lebanese Hezbollah in 2006, Seniora stressed.

Earlier in the day, the prime minister telephoned Lebanese army commander Jean Qahwaji and UNIFIL commander Gen. Claudio Graziano, and discussed the situation in South Lebanon following the exchange of rockets between Lebanon and Israel.

Seniora urged that the Lebanese army and the UN Interim Forces in Lebanon (UNIFIL) should intensify measures and increase coordination in order to prevent the conflicting incidents from happening again and "protect South Lebanon from Israeli aggressions."

According to Lebanon's NBN TV report, the UNIFIL troops in South Lebanon had set up checkpoints and advised people to stay away from the tense Lebanese-Israeli borders.

No group has claimed responsibility for launching the rockets.

Hezbollah denied any knowledge of the incident, while Ramze Mustapha of the Palestinian Front for Liberation of Palestine (PFLP) told New TV that his group has nothing to do with rocket launching towards Israel.