Explosion kills 15 people at Coptic Christian church in Egypt during Palm Sunday

It's a bloody Palm Sunday in Egypt as the country's state run media has just reported

that at least 15 people were killed by an explosion at a Coptic Christian church in the northern part of the country during a service to celebrate Palm Sunday

According to state-run al-Ahram newpaper, at least 42 others were wounded in the explosion at Mar Grigis Coptic church in Tanta roughly 60 miles (96 kilometers) north of Cairo. 

The cause of the explosion is not yet known but in the past, Egypt's Christian minority has often been targeted by Islamist militants.