Hundreds of civilians have been killed in the last years as a result of local conflicts.
"Suffocation, suffocation, all of them dead," a witness was quoted as saying by AP.
Local authorities assigned a security force to protect the church, but it was overwhelmed by the sheer scale of the mob.
A second person, Sherif Rashad, sustained a gunshot wound and was transferred to a hospital in Alexandria.
Coptic Christians comprise approximately 10% of Egypt’s population, which is primarily Muslim.
Locals knew of the perpetrator as one who insulted and mistreated Christians.
Among the 98 female judges appointed on the 3rd of March, there is no Christian.
The Copts (10% of Egypt’s population) are the descendants of a long line of ancient Egyptians who later converted to Christianity.
The three brothers were working in an agricultural field at the moment of their death.