Penang Deputy Chief Minister II P Ramasamy is the latest to be barred from entering Sarawak.
Ramasamy, who is also DAP deputy secretary-general, is currently waiting to be deported from the Kuching international airport.
Ramasamy told Malaysiakini that he arrived in Kuching about 11.15am, and when he submitted his MyKad to the immigration department officers, they detected a travel ban.
