The Roman Catholic community is estimated to be around 250,000 of which 50,000 are Greek citizens. Their community is nominally separate from the smaller Greek Byzantine Catholic Church, which recognises the primacy of the Pope but maintains the liturgy of the Byzantine Rite. Old Calendarists account for 500,000 followers. Protestants, including the Greek Evangelical Church and Free Evangelical Churches, stand at about 30,000. Other Christian minorities, such as Assemblies of God, International Church of the Foursquare Gospel and various Pentecostal churches of the Greek Synod of Apostolic Church total about 12,000 members. The independent Free Apostolic Church of Pentecost is the biggest Protestant denomination in Greece with 120 churches. There are no official statistics about Free Apostolic Church of Pentecost, but the Orthodox Church estimates the followers as 20,000. The Jehovah's Witnesses report having 28,874 active members.