At least 26 people have been killed by gunmen in central Egypt, according to reports.
The BBC says a further 25 have been injured in the attack on a bus carrying passengers to the Monastery of St Samuel the Confessor, which is around 85 miles from Cairo.
The victims are believed to be Coptic Christians, which make up roughly 10% of the 92 million people who live in the country.
No group has yet claimed responsibility for the attack, which comes after two suicide bombings at Palm Sunday services at churches in the northern cities of Alexandria and Tanta on April 9 left 46 people dead.
Egypt’s main tourism resort Sharm el Sheik is currently not being sold in the UK market.
The Foreign and Commonwealth Office does not advise against travel in the affected area, but does advise against travel in other parts of Egypt.
Its also warns that terrorists are “very likely” to try to carry out attacks in Egypt and has been updated since the attack to ask British nationals to avoid the area.