“Incidents such as this will not destabilize us. We have been through bigger ones,” said Crown Prince Mohammed bin Nayef, who is also the interior minister, speaking to foreign ambassadors.

“Thank God the situation is under control. And if something happens, we will deal with it when the time comes.”

The deadly attempted attack on a mosque in Saudi’s eastern city of Dammam killed four after a car exploded near the facility. Security forces foiled the attack, and the militants had failed in their bid to hit the mosque itself, the Saudi press agency reported.

A week earlier, a previous strike by a suicide bomber killed at least 21 and wounded 81 others.

That attack was condemned by Saudi Arabia’s King Salman, who said that the perpetrators would be brought to justice.

“Any participant, planner, supporter or sympathizer with this heinous crime will be held accountable, tried and will receive the punishment he deserves,” he said, adding that Saudi Arabia would never stop fighting militants.

The Senior Council of Ulema, the kingdom’s highest religious body, said that “terrorist groups” had “exposed their hideous faces” by carrying out the attacks.