The death toll from a blast that occurred inside the Boutrosiya Church in Abbasiya earlier Sunday rose to 20, a source with Cairo Police HQ said. 

Another 35 persons were wounded in the explosion in the church, which is adjacent to the St. Mark Coptic Orthodox Cathedral, the source told MENA, adding that all are now at hospital for treatment. 

An initial toll had put the number of dead and injured at five and 10 respectively.

Source: MENA