The 26 deported were members of a closed religious study group that subscribed to extremist beliefs and teachings of radical figures like Anwar al-Awlaki, an Islamic lecturer alleged to have ties with Al Qaeda.
Singapore has deported 26 Bangladeshi migrant workers late last year and jailed one for supporting "the armed jihad ideology" of terror groups like Al Qaeda and the Islamic State, authorities said on Wednesday.
The men, who were working in the construction industry in Singapore, were detained between November 16 and December 1 last year, the Ministry of Home Affairs (MHA) said.
Investigations showed that they supported the armed jihad ideology of terrorist groups such as Al Qaeda and the Islamic State.
Some of them had considered waging armed jihad overseas, but they were not planning any terrorist attacks in Singapore, said the MHA.
The 26 deported were members of a closed religious study group that subscribed to extremist beliefs and teachings of radical figures like Anwar al-Awlaki, an American and Yemeni Islamic lecturer alleged to have ties with militant group Al Qaeda.
Awlaki was killed in a drone strike in Yemen in September 2011.
The Bangladeshi authorities were informed of the circumstances of their repatriation. The jailed man was not a member of the study group, but was discovered to have been undergoing radicalisation. He supported extremist preachers and possessed jihadi-related material.
He was jailed for attempting to leave Singapore illegally. He will also be repatriated once he completes his sentence.
In the course of their arrests, the Internal Security Department recovered a "significant amount" of radical and jihadi-related material, such as books and videos containing footage of children undergoing training in what appeared to be terrorist military camps.
Several members also possessed a shared document with graphic images and instruction details on how to conduct "silent killings" using different methods and weapons.
An excerpt from the document, which depicts in a graphic manner how one can attack and kill with stealth.
The group members took measures to avoid detection by the authorities, sharing jihadi-related materials discreetly and holding weekly gatherings to discuss armed conflicts involving Muslims, said MHA.
"They also carefully targeted the recruitment of other Bangladeshi nationals to grow their membership," it said.
A number of members admitted that they believed they should participate in and wage armed jihad on behalf of their religion.
Several contemplated travelling to the Middle East to take part in the ongoing conflict.
"Members were encouraged to return to Bangladesh and wage armed jihad against the Bangladeshi government. They had also sent monetary donations to entities believed to be linked to extremist groups in Bangladesh," said MHA.