http://www.bbc.co.uk/news/world-africa-22595573Police say they were overwhelmed by the large crowd when a stampede killed four people at a church in Ghana's capital, Accra, on Sunday.Thousands of people flocked to the evangelical church for "holy water", which they believed had healing powers, leading to the crush."All of us were caught by surprise. No-one knew the crowd will be so huge," said police spokesman Freeman Tetteh.The…See More