SINGAPORE — At least one person allegedly involved in a recent protest on an MRT train has been questioned by the police.

Mr Sean Francis Han, an activist and editor of wakeupsg.com, was spotted entering the Police Cantonment Complex in New Bridge Road at around 9.30am on Monday (June 12). He was seen leaving the building about two hours later.

When asked, the police reiterated that they were looking into the matter.

The demonstration, held on June 3 in a train on the North-South Line, was staged to remember a group of people who were detained without trial 30 years ago under the Internal Security Act. 

In May 1987, 22 people — consisting of church workers, social workers, graduates and professionals — were arrested in what was called Operation Spectrum, and accused of being involved in a “Marxist conspiracy” and interfering in the social and political order of Singapore so as to establish a communist state. 

In the recent incident, photos posted online showed at least seven blindfolded people holding up books with the title 1987: Singapore’s Marxist Conspiracy 30 Years On. The book was launched last month by ex-detainees to mark the anniversary of their arrests.