JEDDAH/KUWAIT CITY: Three Saudi brothers have been arrested in connection with the suicide bombing of a mosque in Kuwait last month, the Saudi and Kuwaiti authorities said on Tuesday.

Daesh owned up the attack during Friday prayers, which killed 27 people including the bomber.

The three brothers were “parties to the crime of the sinful terrorist bombing that targeted the Imam Al-Sadeq mosque in Kuwait,” the SPA cited a spokesman for the Saudi Interior Ministry as saying.

Two of the suspects, Majed and Mohammed Al-Zahrani, drove across the border into Kuwait on Thursday afternoon carrying the explosives for the attack in an ice cooler, Kuwait’s Interior Ministry said in a statement.

They left after passing the material to Abdul-Rahman Sabah Aidan, an illegal resident in Kuwait who reportedly drove the bomber to the mosque and is now in custody, the ministry said.

Investigators found the explosives were of the same type used in two bombings on May 22 and May 29 against Shiite mosques in eastern Saudi Arabia.

Majed was arrested in Taif while Zahrani was arrested in Khafji after a shootout at a house near the Kuwaiti border in which two policemen were wounded.

A third brother, who was not named and whose precise role was not described, was arrested in Kuwait and extradited to Saudi Arabia. A fourth brother lives in Syria and is a member of Daesh, SPA said.

“Two of them were born in Kuwait and they have ties to a fourth sibling who is present in Syria as part of Daesh,” the ministry said.