VATICAN CITY, May 14: The Vatican warned Catholic women on Friday to think hard before marrying a Muslim and urged Muslims to show respect for human rights, gender equality and democracy.

Calling women "the least protected member of the Muslim family", it spoke of the "bitter experience" western Catholics had with Muslim husbands, especially if they married outside the Islamic world and later moved to his country of origin.

The comments in a document about migrants around the world were preceded by remarks about points of agreement between Christians and Muslims but they seemed likely to fuel mistrust between the world's two largest religions.

The document said the Church discouraged marriages between believers in traditionally Catholic countries and non-Christian migrants.

It hoped Muslims would show "a growing awareness that fundamental liberties, the inviolable rights of the person, the equal dignity of man and woman, the democratic principle of government and the healthy lay character of the state are principles that cannot be surrendered".

When a Catholic woman and Muslim man wanted to marry, it said: "Bitter experience teaches us that a particularly careful and in-depth preparation is called for."

It said one possible problem was with Muslim in-laws and advised future mothers that they must insist on Church policy that children born of a mixed marriage be baptised and brought up as Catholics.

If the marriage is registered in the consulate of a Muslim country, the document said, the Catholic must be careful not to sign a document or swear an oath including the shahada, the Islamic profession of faith, which would amount to converting.

DIFFERENT APPROACHES: The document highlighted the contrasting approaches the Vatican has taken in recent years towards Islam, which has emerged as a strong rival for souls, especially in Africa.