Yosef Tekoah, a former Israeli diplomat, died Sunday of a heart attack at the age of 66.
As a member of Israel's first U.N. delegation, Tekoah was involved in negotiating cease-fire agreements with Arab countries after the independence war of 1948.
He served as Israel's ambassador to the Soviet Union from 1962 to 1965. Relations were ruptured during the 1967 Middle East war.
Tekoah, called Joe by intimates, was also Israel's ambassador to the United Nations. He served during a stormy period, 1968 to 1975, and is remembered for making tough speeches on the 1973 Six-Day War.