Israeli aircraft have attacked fuel tanks at Beirut's International Airport.
The airport was closed last Thursday by Israeli air strikes that came a day after Hizbollah guerrillas captured two Israeli soldiers and killed eight in a cross-border attack.
This latest Israeli attack comes just hours after Canadian Foreign Minister Peter McKay told local television in Canada that eight Lebanese-Canadians have been killed and six others injured by an Israeli Air Strike on a Lebanese border town.
It is believed that five of the victims were from the same family and had travelled from Canada to spend the summer in Lebanon.
Earlier, the leader of Hizbollah, Sayyed Hassan Nasrallah, said today's rocket attack on Haifa, Israel's third largest city, is just the beginning.
Eight people were killed in the strike, which was the worst since violence flared between Israel and the militant group five days ago.
More than 100 Lebanese civilians have been killed as Israeli forces continue to attack the south of the country.
The latest reports say at least 10 civilians have been killed when Israeli warplanes attacked targets in the port city of Tyre.
Israel's Vice Premier, Shimon Perez, has said Israel is not at war with Lebanon but they will not submit to terrorist threats from Hizbollah.
However, he said he does not believe the conflict will escalate into all out war in the Middle East.
Irish citizens leaving Lebanon
The Government has called on all Irish residents and tourists in Lebanon to leave the region
A dozen or so Irish people have been already been evacuated from the country.
The Government has arranged buses to take up to 100 Irish people to Syria tomorrow morning and from there, it has chartered a plane to bring them home.
The Government is also sending a delegation including Gardaí along with a doctor to aid consulate staff in Beirut.
The Minister for Foreign Affairs, Dermot Ahern, said other countries had been helping the Department to evacuate Irish citizens from Lebanon.
A crisis centre has been set up at Iveagh House in Dublin.
Anyone with concerns for friends or family can contact staff there for information or details on 1800-242548.
Other European countries along with Arab nations and the United States have also devised evacuation plans.