Activist and writer Hishamuddin Rais, a prominent figure in the Reformasi movement of the late 1990s, has revealed that his blog, Tukar Tiub, has been “locked”.

The former Internal Security Act (ISA) detainee has since emerged as a vocal critic of the Pakatan Harapan chairperson.

After 17 years of operation, Hishamuddin, 65, said his blog was...