Former journalist Sidek Kamiso was arrested again today, over a tweet that allegedly insulted Islam.

Sidek's wife, Norlin Wan Musa, told Malaysiakini that he was arrested upon turning up at the Dang Wangi district police headquarters for questioning this morning.

"He was arrested under Section 298(a) of the Penal Code, because they said someone lodged a report against him," Norlin said.