Kuwait says the attacker who carried out Friday's suicide bombing at a Shia mosque was a Saudi citizen.
The interior ministry named the bomber as Fahd Suleiman Abdulmohsen al-Qaba'a, according to state media.
The ministry said he flew into Kuwait on Friday just hours before he detonated explosives at the mosque, killing at least 27 people.
The Islamic State group - which regards Shia Muslims as heretics - says it was behind the attack.
Last month, an IS branch in Saudi Arabia carried out bombings on consecutive Fridays on Shia mosques there.
http://www.bbc.com/news/world-middle-east-33303795