At least 21 people were killed and 50 injured in a bombing in a church in Egypt’s Tanta, north of Cairo, local media reports said on Sunday.

Tanta is roughly 60 miles (96 kilometers) north of Cairo.

No one has yet claimed responsibility for the blast and the cause of the incident was not yet known.

The blast targeted Egypt as the country’s Coptic Christian community marked Palm Sunday.

It occurred in the Coptic church of St George, that was filled with worshippers marking Palm Day, a Christian feast commemorating the entry of Jesus Christ into Jerusalem.

The attack was the latest in a series of aggressions on Egypt's Christian minority, which makes up nearly 10 percent of the population and has been repeatedly attacked by armed groups. It came just weeks before Pope Francis’s visit to Egypt.

CBC TV broadcasted a footage from inside the church, where scores of people gathered around lifeless, bloody bodies covered with papers.

A blast at Cairo’s biggest Coptic cathedral also killed at least 25 people in injured 49 others in December. Many of the casualties were women and children. The bombing was the deadliest attack on Egypt’s Christian minority in years.