Saudi Arabia's State Security Presidency has thwarted a terrorist plot by Daesh terrorist organisation against two headquarters of the Ministry of Defense in Riyadh, a Saudi Press Agency report said.

Two suicide bombers with explosive belts were nabbed before they reached the target location and were neutralised by security men, SPA said quoting an official source.

Preliminary investigations revealed that the culprits were of Yemeni nationality and their names differed from those recorded in the identity cards seized in their possession.  Two Saudi nationals were also arrested and their links with the culprits are being investigated, the report said.

Each explosive belt weighed 7 kg and nine homemade grenades, firearms and non-firearm weapons were also seized.