In pictures: The African Christian congregations of LondonSimon Dawson / ReutersReuters photographer Simon Dawson has been photographing African churches in London for the past year, capturing the thriving community at Sunday morning worship.Simon Dawson / ReutersIn parts of the capital, Sunday morning will see worshippers making their way to churches, each with their different styles of worship. The hymns are only sung in African languages in some congregations, and only in English at others.Simn Dawson / ReutersIn a street outside one church, a pastor flicks holy water over the car of a woman who wants a blessing to ward off the risk of accidents.Simon Dawson / ReutersDawson accompanied members of the Apostles Of Muchinjikwa Christian church to photograph a mass baptism in the sea at Southend.Simon Dawson / ReutersThe House of Praise congregation is one of south London's biggest and meets in a former theatre and bingo hall, which can hold several thousand people. The services, mainly attended by worshippers of Nigerian descent, are recorded on video.Simon Dawson / ReutersMembers of the youth church perform in a knife crime play on Good Friday.Simon Dawson / ReutersWorshippers take photos outside the House of Praise church after a service.Simon Dawson / ReutersAccording to University of Roehampton researchers, Southwark has the biggest concentration of African Christians in the world outside the continent, with an estimated 20,000 congregants attending services each Sunday.Simon Dawson / ReutersA worshipper reads a passage from the Bible on her smartphone during a Sunday service.Simon Dawson / ReutersMembers of the Eternal Sacred Order of Cherubim and Seraphim Church parade through the street in Elephant and Castle, to celebrate their annual Thanksgiving .Simon Dawson / ReutersYoung members of the church take a break ahead of the parade.Simon Dawson / ReutersThe Celestial Church of Christ in Elephant and Castle is based in a former Church of England building just off the Old Kent Road. The Sunday service lasts for several hours.Simon Dawson / ReutersAll photographs by Simon Dawson / Reuters.