Kuwaiti authorities are identifying the suicide bomber behind Friday's attack on a Shiite mosque that killed 27 people as a Saudi citizen who flew into the Gulf nation just hours before he blew himself up.

The Interior Ministry on Sunday named the bomber as Fahad Suleiman Abdulmohsen al-Gabbaa and said he was born in 1992, making him 22 or 23 years old.

It said in a statement carried by the official Kuwait News Agency that he arrived on a flight to Kuwait International Airport at dawn Friday.

The ministry said earlier it arrested several suspects, including a Kuwaiti, in connection with the attack.

A local affiliate of the Islamic State group claimed responsibility for the attack during midday Friday prayers inside one of Kuwait's oldest Shiite mosques.