The seven Islamic State (IS) militants arrested last week had planned to attack Saudi Arabian King Salman bin Abdulaziz Al Saud during his maiden state visit to the country last month, said Malaysia's Inspector-General of Police Khalid Abu Bakar.
Mr Khalid said police had gotten to the seven “in the nick of time".
"They were planning to attack Saudi Arabian royalty during their visit to Kuala Lumpur.
"Thank God they did not get close," he said.
Mr Khalid refused to divulge further details on the arrest, or on police's trail of other suspected IS militants.
Mr Khalid said the seven, comprising four Yemenis, two Malaysians and one Indonesian, were distributing drugs, apart from being involved in producing false travel documents.