Stopped all IS attacks in kingdom, held 400, says Saudi Arabia
The interior ministry also accused those arrested over the past few weeks of conducting several attacks in the oil-rich eastern Qatif region. It was the deadliest militant assault in the kingdom in more than a decade.
All the planned Islamic State attacks in the kingdom have been broken up, said Saudi Arabia, announcing it has arrested over 400 people in its raids.
In a statement on Saturday carried on the official state news agency, the interior ministry also accused those arrested over the "past few weeks" of conducting several attacks, including an Islamic State-claimed suicide bomb in May that killed 21 people in the village of al-Qudeeh, in the oil-rich eastern Qatif region. It was the deadliest militant assault in the kingdom in more than a decade.
It also blamed them for the November shooting and killing of eight worshippers in the eastern Saudi Arabian village of al-Ahsa.
The statement said the arrested men were also behind another attack in late May, when a suicide bomber disguised as a woman blew himself up in the parking lot of a Shiite mosque during Friday prayers, killing four people.
The Interior Ministry said that in June they thwarted a suicide bomb attack on a large mosque in eastern Saudi Arabia that can hold 3,000 worshippers, along with multiple planned attacks on other mosques and diplomatic and security bodies.
Those arrested were also behind a number of militant websites used in recruiting, the ministry said. Saudi Arabia branded the Islamic State group a terrorist organization last year and has joined the US-led coalition targeting it in Syria and Iraq.
The announcement came a day after an attack by the Islamic State group on a crowded marketplace in Iraq's eastern Diyala province killed 115 people, including women and children, in one of the deadliest single attacks in the country in the past decade.