A blast in the Egyptian capital has killed 25 people and injured 49 others, Egyptian state TV says.

The explosion occurred at Cairo’s Coptic Cathedral on Sunday.

No group or individual has so far claimed responsibility for the deadly incident.

Just two days earlier, a terrorist bombing attack in the west of the Egyptian capital had six policemen dead and seven people wounded.

The Friday bombing targeted a security post in the Talibiya district of Cairo.

Egyptian emergency staff and medics attend to victims at the scene of an explosion near Cairo’s Coptic Cathedral, December 11, 2016 (Photo by Youm7).

Al-Azhar condemns church blast in Cairo

Later on Sunday, head of Egypt’s Al-Azhar, which is the country’s top religious authority, condemned the bomb blast at a Cairo church as "a great crime" against all Egyptians.

"The vile terrorist explosion" was "a great crime against all Egyptians," Al-Azhar's grand imam, Sheikh Ahmed al-Tayeb, said in a statement.

Ansar Bayt al-Maqdis (ABM), currently known as “The Sinai Province,” is currently the most active group staging terrorist operations in Egypt. It is affiliated to the Takfiri Daesh terrorist group.

Militants from the group have carried out numerous attacks on security forces and judiciary officials since the ouster of the democratically-elected president Mohamed Morsi in 2013.

Most of the group’s attacks have been focused on targets in the restive Sinai Peninsula; however, deadly bombings have also been staged by the Sinai Takfiris in Cairo and some other Egyptian cities.