Iran. The IEC, including Al-Hadi School of Accelerative Learning, was among the assets. Houston-area Shia Muslims criticized the federal government's actions. In a period of several years before 2012, several new mosques had opened. In the same period, other mosques were expanded. On Friday February 13, 2015, a fire occurred at the Quba Islamic Institute, located in southeast Houston. Houston Fire Department officials stated that they discovered an accelerant that was used in the fire. Demographics and ethnicity , Muslims in the Houston area included South Asians, Middle Easterners, Africans, Turks, and Indonesians. As of 2000, over 70% of the Muslims in Houston were of Pakistani origins. As of 2000 most established Muslim immigrants live in north and northwest Houston while most new Muslim immigrants live in Southwest Houston. As of 1990, the Iranian Shia in Houston primarily used the ISGH mosques for occasional needs including marriages and funerals. According to Hoda Badr, the author of "Al Noor Mosque: Strength Through Unity," from 1990 to 2000 many Arabs began to create their own mosques and Islamic schools separate from the ISGH due to disagreements over various issues including the language of the Friday sermons, the operations of Sunday schools and full-time schools, and the monetary distribution and collection. In 2000 Badr wrote that Muslims "remain fragmented along ethnic lines" and this is mainly due to increased immigration. Around 2002 in Houston some Hispanics were converts to Islam. They said that many people mistake them to be of Pakistani or Middle Eastern origin because they are Muslim. Religious doctrine The ISGH and the Al-Noor Islamic Society have different views on when to start Ramadan. The former uses the Islamic Society of North America (ISNA) of starting it with the first sighting of the moon in North America while the latter strictly uses the first sighting of the moon in the local Houston area. Varieties of Islam Shia Islam There are many Shia mosques in Houston. Some of them are Al-Ghadeer, Al-Murtaza, IPF, IEC, Ahlulbayt, Dar-e-Abbas, and Ali Center. Houston also has one of the largest Juloos in the US organized by Pasban-e-Aza. Ismailism Among the estimated 15 million Ismailis in the world, approximately 40,000 are located in Houston. "" In the 1960s the first large numbers of Ismailis came to Houston to work in the Texas Medical Center. In 2002 there were about 15,000 Ismailis in the Houston area. By 2020