According to Home Minister Syed Hamid Albar, the 58-year old father of five would be detained under Section 73(1) of the ISA, which allows for detention of up to 60 days.
“The police will do an assessment during this period and if they feel he should be held more than 60 days, the police will then refer to me,” Syed Hamid was quoted as saying by The Star.
The minister also confirmed that the Sin Chew Daily, The Sun and Suara Keadilan were issued show cause letters. "They have been given a week to reply," he added.
Raja Petra's wife Marina Lee Abdullah earlier told Malaysiakini that 10 police personnel from Bukit Aman came to their home in Sungai Buloh at about 1.10pm to arrest him.
When Malaysiakini contacted her at 1.25pm, the police personnel were still there.
However, Raja Petra - popularly known by his initials RPK - was taken away to an unknown destination at 1.50pm. The police also confiscated a computer, some books and VCDs.On Sept 6, Syed Hamid had warned that RPK, who edits the popular news portal Malaysia Today, could be charged under the ISA for comments allegedly insulting Islam and Prophet Muhammad.
The minister said several religious groups - Malaysian Islamic Development Department (Jakim), Yayasan Dakwah Islamiah Malaysia (Yadim), Federal Territory Islamic Religious Council (Maiwp) and Federal Territory Religious Department (Jawi) - had lodged police reports against him.
The groups had complained Raja Petra's comment in an article entitled "I Promise to be a good, non-hypocritical Muslim" allegedly used sentences that insulted Muslims. The government ordered the blocking of the Malaysia Today website two weeks ago, but the ban was lifted yesterday.
The ban together with Syed Hamid's warning to invoke the ISA had sparked a public furore against government censorship of the Internet.