An Iraqi woman inspects the aftermath of a suicide vehicle bombing at a busy market in Khan Bani Saad in the Diyala province, about 20 miles (30 kilometers) northeast of Baghdad, Iraq, Saturday, July 18, 2015.

The country’s Interior Ministry has announced that it has arrested 400 people in connection with potential terrorist attacks, according to the report. Militants from the radical group have said they plan to drive away the kingdom’s minority Shiite Muslims, whom they believe are heretics.

It also blamed them for the November shooting and killing of eight worshippers in the eastern Saudi Arabian village of al-Ahsa.

Debris inside the Shiite Imam Ali ibn Abi Talib Mosque in Saudi Arabia’s Eastern Province, where a suicide bomber killed 21 people in an attack claimed by Daesh.

“The number arrested to date is 431, majority citizens, in addition to participants from other nationalities”, the ministry statement said on the official news agency SPA.

Saudi Arabia and its Sunni Gulf neighbours past year joined a US-led military coalition bombing IS in Syria, raising concerns about possible retaliation in the kingdom.

The report quoted an interior ministry statement as saying that the foiled terrorist attempts included a suicide attack targeting a mosque of the Special Emergency Forces in Riyadh on June 26.