NEW YORK (AP) - Osama bin Laden, who has threatened to extend al-Qaida's terror to Israel, will release a new Internet message dealing with Israelis and Palestinians, a terrorism monitoring group said Thursday.

The announcement of the impending comments by the head of al-Qaida was posted on Web sites often used by Islamic militant groups, the SITE Intelligence Group said.

Bin Laden's statement, "The Causes of Conflict on the 60th Anniversary of the Establishment of the State of Israeli Occupation" and will be addressed to the "Western peoples," SITE said.

Israel has been celebrating the anniversary of its independence, but the occasion has also been mourned by many Palestinians as a reminder of their uprooting.

The Internet message - expected to appear within 72 hours of the advertisement - will be bin Laden's second this year and the seventh since the start of 2007, part of an overall increase by al-Qaida in the pace of Internet statements.

In a December, the terror leader offered an unusually direct attack on Israel and stepped up al-Qaida's attempts to use the Israeli-Arab conflict to rally supporters.

"We intend to liberate Palestine, the whole of Palestine from the (Jordan) river to the sea," he said, threatening "blood for blood, destruction for destruction."

Israel has warned of growing al-Qaida activity in Palestinian territory, though terror network is not believed to have taken a strong role there so far.