There is "no chance" that Israel will agree to make changes to the military appendix of the Camp David Accords, and Egypt "should not delude itself and others" into thinking so, Foreign Minister Avigdor Lieberman told Israel Radio on Sunday.

Lieberman's comments came in response to recent reports suggesting that the Egyptian government was planning to re-examine the military appendix of the Israel-Egypt peace treaty amid the deteriorating security situation in Sinai.

The foreign minister said that what Sinai lacked was not more Egyptian troops but rather a willingness on the part of the government to fight terrorists in the peninsula.

On the eve of his first visit to the U.S. as Egypt's president, Mohammed Morsi told The New York Times on Saturday that if Washington wanted Egypt to honor its peace agreement with Israel, the U.S. had to help build a Palestinian state, something to which the U.S. had made a commitment in the Camp David Accords.

Over the weekend, a Morsi adviser said the Egyptian president was expected to seek modifications to the military appendix of the peace treaty in coming days.

"The military appendix in the Camp David Accords is inconsistent with the Egyptian constitution, which stipulates that Egypt's armed forces have the full right to defend the state's sovereignty," Morsi's political adviser, Mohamed Essmat Seif al-Dawla, was quoted by Egyptian media as telling a Turkish news agency.

"Due to the military limitations imposed on us [under the treaty], the Sinai Peninsula has turned into fertile ground for terrorist activity and espionage rings, and at least 30 percent of the Sinai Peninsula is devoid of any Egyptian security presence. It makes no sense that this peace agreement which has lasted for 30 years will not include any changes. The new Egyptian regime cannot go on like this."

Al-Dawla continued, "Changes in the peace agreement have not only been demanded by the public, but are necessary for strategic and security purposes. In the next few days, we will convene a meeting of Egyptian political leaders to re-examine the military restrictions, and this is a question of time until we restore security to Sinai."

Israel said on Saturday that the military appendix was "the cornerstone" of the entire peace agreement, and that the clause allowing changes to the treaty states that both sides have to agree to any amendments.

Cairo has not asked Israel to make any changes to the agreement.

"We are concerned about the Egyptian front — it is the most active of Israel's fronts. The real terrorist threat emanates from there," a senior government official in Jerusalem said on Saturday.

On Friday, three armed terrorists from Sinai killed an Israeli soldier and wounded another before being shot dead, the Israel Defense Forces said.

A senior political source in Jerusalem over the weekend said that Israel expected Egypt to "maintain order" and that the U.S. and other Western officials had sent a similar message to the Egyptians.

Sources in Jerusalem added that the fact that the attack took place in an area where the security fence has not yet been built stems from the terrorists' understanding of the dramatic security change in the area caused by the construction of the fence.