Gunmen have attacked a bus carrying Coptic Christians in central Egypt, killing at least 28 <br /> <br />The Copts killed had been travelling to St Samuel's monastery to pray <br /> <br />Between eight and 10 gunmen wearing military uniforms attacked the convoy <br /> <br />According to The New York Times, the gunmen ordered the passengers to get out of the bus <br /> <br />They told the men to recite the shahada, the Islamic declaration of faith <br /> <br />When the men refused, the gunmen opened fire <br /> <br />There was no immediate claim of responsibility
