Kuwait has on Tuesday arrested 60 people suspected to have link with last Friday’s suicide bombing, closed a local charity raising funds for Syrians and stopped issuing travel documents as a precaution.
The ISIS claimed responsibility for the suicide bombing on Friday by a Saudi citizen on a Shiite Muslim mosque in Kuwait City which killed 27 worshippers.
"We are in a state of war. It's a war that had been decided with this cell. But there are other cells, and we will not wait for them to try their luck with us," Interior Minister Sheikh Mohammad Al Khaled Al Sabah told parliament.
According to Kuwaiti officials, the attack’s aim was to trigger sectarian conflict in the Sunni majority state.
Sixty people, including Kuwaiti citizens were detained in the investigation, according to al Qabas newspaper.
Among the arrested people, some were claimed to have contact with militant groups before.
The newspaper also claimed that 5 people allegedly involved in bomb attack, had been dispatched to the public prosecutor.
Kuwaiti authorities were not immediately available for comment, al Qabas reported.
The Ministry of Labour and Social Affairs permanently closed down the Fahd al Ahmed charity on Sunday due to "repeated violations despite the warnings,” Al-Rai daily, another Kuwaiti newspaper reported.
Kuwait had been accused of being "the epicentre of fund-raising for terrorist groups in Syria" by the US Treasury Under Secretary for Terrorism and Financial Intelligence David Cohen.