Immigration director-general Khairul Dzaimee Daud said the raids were carried out in four series of operations starting Aug 13, with Indonesians making up the highest number of detainees (94 people), followed by Myanmar nationals (8), Bangladeshis (4) and Pakistanis (4).

“Most of them did not have travel documents and had abused the social visit passes issued to tourists,” he told reporters after participating in the operation codenamed “Ops Durian”, carried out in Sungai Ruan here today.

He said among the challenges faced during the operation were the large sizes of the estates and the presence of dogs.

In another development, Khairul said the department was still looking for several individuals involved in a syndicate forging immigration stamps known as “Sindiket Anton”, believed to be run by an Indonesian for the past two years.

On Sept 15, Bernama reported that the syndicate was crippled following raids on two premises in Sungai Way, Petaling Jaya, and the arrest of the syndicate’s mastermind known as Anton, 38, and his wife, 32, also an Indonesian, on Sept 14.