2003
- 12 May (See Riyadh Compound Bombings) 35 are killed and over 200 wounded during a suicide attack on the Vinnell Compound in Riyadh. There is a rumor that National Guard collusion was involved; however, there is no proof or credible source to support that claim.
- 31 May 2 police officers and a militant are killed.
- 14 June Security forces raided a building in the Khalidiya neighborhood of Makkah. Two Saudi police officers and five suspects were killed in a shootout. Twelve suspects were arrested including two from Chad and one Egyptian.
- 28 July 6 militants — four Saudis and two Chadians — and two police officers were killed in a police raid on a farm outside of Al-Qasim. The four Saudis were identified as Ahmad Al-Dakheel, Kareem Olayyan Al-Ramthan Al-Harbi, Saud Aamir Suleiman Al-Qurashi, and Muhammad Ghazi Saleem Al-Harbi. The Chadians were Isa Kamal Yousuf Khater and Isa Saleh Ali Ahmed. Another Saudi wanted person, identified as Ibrahim ibn Abdullah Khalaf Al-Harbi, was arrested after he being injured.
- 23 September 3 militants and a police officer are killed in a gunfight at a Riyadh hospital.
- 20 October Police raid hideout in Riyadh and capture a large supply of weapons.
- 3 November Police surround militant hideout in Riyadh and kill two.
- 6 November 2 militants surrounded by the police in Riyadh blow themselves up.
- 8 November A truck bomb explodes at an Arab housing compound in Riyadh, killing 17 and injuring 120.
- 8 December an unnamed militant is killed at a Riyadh gas station.
Read more about this topic: List Of Militant Incidents In Saudi Arabia