Twin brothers in Saudi Arabia allegedly killed their mother by stabbing her repeatedly after she attempted to stop them joining Isis.
The country’s interior ministry said Khaled and Saleh al-Oraini, both 20, had been arrested on suspicion of stabbing their 67-year-old mother, Haila, in the family home in capital Riyadh.
They also stand accused of attacking their 73-year-old father and 22-year-brother, who both remain in hospital in critical condition.
Haila al-Oraini died of her injuries at the scene. She had objected to her sons joining jihadists in Syria.
The brothers were arrested while trying to flee across the border into Yemen, and it is not known where they are being held at present.
Interior ministry spokesman General Mansour al-Turki declined to give out many details about the case, other than to confirm the twins were under investigation.
“The only thing [we have established] is that they follow Takfiri ideology,” he told Reuters.
Takfiri ideology is a term used by the Saudi authorities to refer to followers of Isis, but more literally connotes a Sunni Muslim who accuses another Muslim of apostasy.
The case has provoked widespread debate in Saudi Arabia about the nature of Islamic teachings, and the influence of fatwas in centuries-old religious texts.