Najran is a city in southwestern Saudi Arabia near the frontier with Yemen. It is the capital of Najran Province. Designated a New town by the Saudi Government in 1965, Najran is one of the fastest-growing cities in the kingdom, its population having risen from 47,500 in (1974) and 90,983 in 1992 to 246,880 in 2004 . Saudi Arabia annexed 'Asir, Najran, and Jizan from Yemen in 1934. The population belongs mostly to the ancient tribe of Yam. Najran city is famous for its archeological significance. It once was the home to an old Christian community that came into conflict with the Jewish rulers of Yemen, which ended in their being massacred. Later there was a religious discussion between them and the Islamic prophet Muhammad, which was inconclusive but ended with signing a treaty between the two parties. Most of the people of the region converted later to Islam.