In Egypt, atleast 22 people were killed and over 30 injured today in a blast at Cairo's main Coptic Christian cathedral during a mass.<br/><br/>The explosion took place at St. Mark's Cathedral, main Coptic Christian cathedral, in central Cairo, according to a statement by the Ministry of Health.<br/><br/>The reason of the large number of victims was because the blast took during Christian pray time and there were a large number inside the cathedral, the statement said.