Updated

A security official says another Christian has died from gunshot wounds sustained in clashes with police over construction of a Cairo church, raising the death toll to two.

The official says 24-year-old Milad Malak was shot in the stomach and died after surgery Friday.

The official spoke on condition of anonymity because he wasn't authorized to release the information.

Wednesday's riot erupted after police halted the church's construction, saying it violated building permits.

Authorities have detained 156 Christians on allegations of violence during the riot.

Coptic Christians complain frequently of discrimination but generally live in peace with Egypt's Muslim majority despite occasional clashes, especially over limits on church building.