A dispute over the role of Islamic law in Egypt has Christians on the country's constitutional committee threatening to drop out.
The hardline Islamist al-Nour Party wants to add a definition of Shariah law to the constitution.
But critics say that could lead to a stricter interpretation of Shariah.
Christians on the committee warned that if the Islamists force the issue, they may quit the committee to show their concern.
The committee is amending the constitution as part of a roadmap to re-launch democracy in Egypt. A referendum on the amendments is scheduled for December.