Cairo: Thirty-one defendants are to go on trial in Egypt later this month on charges related to the 2013 killings of four Shiites outside Cairo, a court statement said on Thursday.

The four, who included a cleric, were killed on June 23 last year when a hostile mob attacked a house where they had gathered in the village of Abu Mussalam in Giza province.

The charges include the murders of the four men, the attempted murders of 13 others, vandalism and arson. The trial is due to open on December 21.

The killings came the month before the army ousted elected Islamist president Mohammad Mursi and followed weeks of toxic anti-Shiite rhetoric in the Egyptian media and from Sunni Islamist leaders.

Mursi’s office condemned the killings.

Shiites make up just one per cent of Egypt’s population which is primarily Sunni.

Shiites are frequently accused of being under the influence of Shiite-majority Iran.