government recognizes Armenians and Assyrians as minorities but in Turkey, this term is used to denote second-class status. In February 2006, Father Andrea Santoro was murdered in Trabzon. On 18 April 2007 in the Zirve Publishing House, Malatya, Turkey. Three employees of the Bible publishing house were attacked, tortured and murdered by five Sunni Muslim assailants. Yemen The Christian presence in Yemen dates back to the fourth century AD when a number of Himyarites embrace Christianity due to the efforts of Theophilos the Indian. Currently, there are no official statistics on their numbers, but they are estimated to be between 3,000 and 25,000 people, and most of them are either refugees or temporary residents. Freedom of worship, conversion from Islam and establishing facilities dedicated for worship are not recognized as rights in the country's Constitution and laws. At the same time, Wahabbi activities linked to Al-Islah was being facilitated, financed and encouraged from multiple fronts including the Ministry of Endowments and Guidance, which says that its tasks "to contribute to the development of Islamic awareness and circulation of the publication Education and Islamic morals and consolidation in the life of public and private citizens." The Missionaries of Charity founded by Mother Teresa has worked in Aden since 1992, and it has three other centers in Sana'a, Taiz and Hodeidah. Three Catholic nuns were killed in Hodeidah in 1998, two of them were from India and the third was from the Philippines at the hands of a member of Al-Islah named Abdullah al-Nashiri, who argued that they were calling Muslims to convert to Christianity. In 2002, three Americans were killed in Baptists Hospital at the hands of another Al-Islah member named Abed Abdul Razak Kamel. Survivors say that the suspect (Al-Islah) was "a political football" who had been raised by Islamists, who talked about it often in mosques and who described hospital workers as "spies". But they emphasized that these views are only held by a minority of Yemenis. In December 2015, an old Catholic church in Aden was destroyed. Since the escalation of the Yemeni crisis in March 2015, six priests from John Bosco remained, and twenty workers for charitable missions in the country, described by Pope Francis by the courage to fortitude amid war and conflict. He called the Apostolic Vicar of Southern Arabia to pray for all the oppressed and tortured, expelled from their homes, and killed unjustly.