The Daesh group claimed a suicide bombing that ripped through a Shiite mosque in Kuwait on Friday that medics say killed at least 13 people.
The Daesh-affiliated group in Saudi Arabia, calling itself Najd Province, said militant Abu Suleiman al-Muwahhid carried out the attack on the mosque, which it claimed was spreading Shiite teachings among Sunni Muslims.
Daesh, a radical Sunni Muslim group, considers Shiites to be heretics.
Medics said the suicide bombing killed "at least 13 people, while 25 others were hospitalised."
Najd Province claimed similar bombings against Shiite mosques in Saudi Arabia in recent weeks.