Mustafa Khalil, 88, a former Egyptian prime minister and an architect of the 1979 Camp David peace treaty between Egypt and Israel, has died.

He died Saturday at a Cairo hospital where he was being treated for an unspecified illness, the state news agency MENA said.

Mr. Khalil, as former secretary-general of the ruling Arab Socialist Union party, accompanied President Anwar el-Sadat in his visit to Jerusalem in November 1977. The visit paved the way for the talks mediated by President Jimmy Carter.

Mr. Khalil served as prime minister from 1978-80, then headed the Egyptian team in negotiations with the Israelis at Camp David, which ended with the 1979 peace deal, the first between an Arab nation and Israel.

More recently, he served as deputy chairman of the ruling National Democratic Party. He stepped down in November. - AP