SHAH ALAM: An Indonesian woman suspected of using TikTok to promote illegal immigration services, including arranging migrant movements through unauthorised routes, has been arrested following a month-long intelligence operation.

The 31-year-old woman was arrested at a residential premises in Section U15 here on Monday. She is believed to have operated as an illegal immigration agent for about a year.

Immigration Department director-general Datuk Zakaria Shaaban said the operation, which began at 10am, was carried out by officers from the department's Intelligence and Special Operations Division at its headquarters in Putrajaya.

"The operation was conducted following information received from the public," he said in a statement.