Saudi security forces arrest 13 accused of planning attacks

Saudi Arabia said on Monday it had arrested 13 individuals in connection with planning attacks in the kingdom, a day after security forces said they had thwarted an attack north of the capital, state news agency SPA reported.

Islamic State claimed responsibility for Sunday's attempted attack on a state security building in the central Riyadh province. Security forces said they had killed four alleged Islamic State militants who had planned Sunday's attack.