A man who allegedly held a protest at Raffles Place earlier this week was charged in court yesterday.

Singaporean Yan Jun, 41, is accused of two counts of taking part in a public assembly without a permit. He allegedly demonstrated opposition to the actions of Prime Minister Lee Hsien Loong and the Singapore judiciary by displaying a placard outside Raffles Place MRT station at around 12pm on Monday and 1 pm the next day.

According to court documents, the placard stated: "PM Lee: resign over Terrax (sic) conspiracy" on one side. The other side had a statement accusing the Supreme Court of "judicial corruption".

Deputy Public Prosecutor Randeep Singh told the court yesterday that additional charges will be filed against him. Yan allegedly committed similar offences outside the United States Embassy and the British High Commission late last year.

DPP Singh also said that he was diagnosed with delusional disorder at the Institute of Mental Health (IMH) in February this year.

The court heard that Yan had been fined $2,000 on June 16 last year for a similar offence.

Yan, who was unrepresented, will be remanded at IMH for a psychiatric observation. He will be back in court on July 19.

In November last year , nine Singapore Armed Forces Terrex Infantry Carrier Vehicles were seized by Hong Kong Customs officials for more than two months. They were returned in January this year.

If convicted of taking part in a public assembly without a permit, Yan can be fined up to $5,000 for each charge.