Two Jordanian jet fighters flew over northern Israel today and then were fired on by a Syrian missile battery as they returned to Jordan by way of Syrian airspace, Israeli military sources said tonight.

An Israeli Army command source said the Jordanian pilots apparently realized their mistake while over the Sea of Galilee, in northern Israel, and turned back before Israeli fighters were scrambled to intercept them.

He said a missile was fired from near where the Israeli, Jordanian and Syrian borders converge, missing the aircraft.

The Israeli source referred to the intrusion as "a local incident, simply a mistake."

The governments of Syria and Jordan have been holding high-level diplomatic talks over restoring relations, which were severed by Syria in 1980 when Syria accused Jordan of harboring Moslem fundamentalist guerrillas opposed to President Hafez Assad.

The Associated Press reported the following:

Haaretz, an independent Israeli daily newspaper, said Prime Minister Shimon Peres has proposed to Jordan's King Hussein an interim peace plan that would include autonomy for West Bank Palestinians under joint Israeli-Jordanian supervision.

Peres' spokesman, Uri Savir, said, however, that "the report is not true."

"There is no such operative plan," Savir said. "There may be people who have thoughts on such subjects, but no concrete plan was passed on to Hussein."

Haaretz quoted a senior government source as saying Hussein had accepted the main points of Peres' plan in principle but would insist on the approval of the other countries involved in the peace process before giving it his formal go-ahead.

Haaretz said Washington already has given its blessing to the plan, under which the West Bank's 750,000 Palestinians would elect an autonomy council to run local government functions under an Israeli-Jordanian joint supervising government.

Savir acknowledged that Israel and the United States were holding quiet diplomatic contacts to advance peace talks.

"There are now contacts with the United States to explore possibilities for furthering the process," he said. "It's in quiet gear."

A U.S. Embassy spokesman, speaking on condition of anonymity, confirmed contacts were taking place "at all levels."