The death toll from clashes between Christians and Muslims in Egypt has climbed to at least nine people, after a 21-year-old Muslim succumbed to his injuries, the Health Ministry says.

On Thursday, Health Ministry Spokesman Yahya Moussa said the man died from burn injuries after a petrol bomb was hurled at him during clashes earlier this week.

On April 5, Coptic Christians and Muslims started fighting in El Khusus, north of the capital, after Christian children drew a crucifix on the front wall of a Muslim religious institute in the governorate of Qalyubiyah.

Four Christian Copts and one Muslim were killed at that time.

On April 7, clashes between Christians and Muslims broke out again outside St. Mark’s Coptic Orthodox Cathedral in Cairo, after a funeral service was held for the Christians killed in El Khusus. At least two people were killed and almost a hundred wounded in the violence.

Later in the day, President Mohamed Morsi issued a statement, condemning the violence in the capital and calling for “an immediate investigation” into the incident.

Following the funeral ceremony, the clashes restarted in El Khusus where another person was killed.

On April 10, hundreds of people took to the streets in the Egyptian capital to call for national unity after the deadly sectarian violence in the North African country.

During the “Unity” rally, the demonstrators marched to the cathedral, demanding unity between the country’s Muslims and Coptic Christians.

Christians make up about 10 to 15 percent of Egypt’s population of 90 million.