On Friday May 22, a suicide bomber attacked the Shia "Imam Ali ibn Abi Talib Mosque" situated in Qudeih village of Qatif city in Eastern Province, Saudi Arabia.

Jafar Al Shayeb, a member of the Qatif municipal council, says that sectarian tensions have already risen sharply as a result of the war Saudi Arabia's new King Salman is waging against the Houthis and that divisive rhetoric from Wahhabi preachers was increasing.

[12][13][14] In an online statement, the Islamic State claimed responsibility, saying their soldiers were behind the attack at the Imam Ali Mosque and that one of their suicide bombers, identifying him as Abu Amer Al-Najdi, had detonated an explosive belt.

[18] Saudi Arabia's top cleric, Grand Mufti Abdul-Aziz ibn Abdullah Al ash-Sheikh, has also condemned the attack and described the terrorist act as "a crime, shame and great sin".

"[20] Half a million people participated in funeral processions for victims of explosion in Ali Bin Abi Talib Mosque in Al-Qudaih town of Qatif governorate in the Saudi Eastern Province on Friday, the 22 May 2015.

Black flags of mourning flew in the streets of Qatif, where police mounted checkpoints while volunteers in bright yellow and orange vests inspected vehicles.

[24][25] The procession stretched for over three miles from different settlements in the province to the burial site to show respect for the victims bombing which led to the killing of 21 worshipers, including two children.

[28] Reportedly four people have died after a suicide bomber targeted a Shia mosque Imam Hussain in Saudi Arabia's eastern province which is the second attack of its kind in a week, fuelling fears of an organised campaign by the Islamic State to foment sectarian tensions inside the conservative Sunni kingdom.

[33][34] Per sources of KSN News (KSNW-TV) Abduljaleel's older brother, Muhammed Jumah Alarbash, has also died on Friday night from injuries he sustained in the terror attack on 29 May 2015.