A massive explosion on Sunday morning killed 29 Coptic Christians in Mar Gerges church located in Egypt's Delta city of Tanta; 78 worshippers were also injured, say officials.
In an earlier phone call, official spokesperson for the Health Ministry Khalid Megahed told Egypt Independent: "The death toll is expected to rise, but at the moment we have recorded the deaths of 21 worshippers and 59 who were injured."
The cause of the explosion is still unknown. Preliminary testimonies from residents say improvised explosive devices were placed around the church, while other witnesses said it was a suicide bomber.
This attack comes a week before Easter and in advance of Catholic Pope Francis' visit to Cairo later this month.