Saudi Arabia was rocked by explosions in the ancient cities of Medina and Qatif in what is suspected to be an attack by ISIS agents.
Al Jazeera reports that a suicide attack carried out at the Prophet's Mosque in Medina, Islam's second holiest city which has taken the lives of four security officers and left five injured.
"The vibrations were strong. It sounded like a building imploded," Qari Ziyaad Patel from South Africa told AP. He added that many first thought it was the sound of traditional celebratory cannon fire but then felt the ground shake as the attack was carried out just before Maghreb prayers when people were breaking their fast inside the mosque.
Simultaneously, another attack was carried out in Qatif where two explosions were heard near a mosque. According to The Independant, witnesses report that one explosion destroyed a car parked near the mosque and body parts of what is believed to be the suicide bomber could be seen. No injuries were caused as most of the people were indoors breaking their fast.
Earlier this week in Jeddah, two security officers were injured as they moved in to investigate a suspicious man which turned out to be a suicide bomber. The man blew himself up right before he could be apprehended inside a hospital parking area near the US consulate.
While ISIS has not claimed immediate responsibility for these attacks on Saudi Arabia, the modus operandi is strikingly similar to past ISIS attacks. The group has claimed responsibility for the resent attacks that has rocked Baghdad, Istanbul and Dhaka.
These attacks come in the holy month of Ramadan just days before Eid al-Fitr, Islam's most holiest important religious holiday.