The demonstrators denounced the deadly attack and called on Saudi officials to protect the citizens and put an end to the spread of hatred in Saudi media, Al-Alam news network reported.
On Friday, a bomb attack, claimed by the Takfiri ISIL terrorist group, targeted a Shia mosque in the Eastern Province, with a confirmed death toll of four as of now.
The Saudi Interior Ministry said the attack took place close to Imam Hussein (AS) Mosque in Dammam, located about 400 kilometers (250 miles) east of the capital, Riyadh.
Saudi media quoted an Interior Ministry spokesman as saying that a bomber, who was dressed in women’s clothing, detonated his bomb in the parking lot of the mosque after his car was stopped by security guards.
But it later become clear that security forces played no role in stopping the terrorist’s car.
The new assault came a week after a bombing hit a mosque in the al-Qudaih village in the province’s Qatif district, killing 21 worshipers, including two children.
The Takfiri ISIL terrorist group claimed responsibility for the May 22 attack.