SINGAPORE - Singapore has detained eight Bangladeshi men planning to stage terror attacks in their home country as the Islamic State in Bangladesh (ISB), the city state said on Tuesday, the second group of Bangladeshis investigated in the past six months.The men, aged 26 to 34, were working in Singapore's construction and marine industries, the government said in a statement. At least two more members in the group were in Bangladesh, it added."ISB poses a security concern to Singapore because of its support for ISIS and its readiness to resort to the use of violence overseas," the Ministry of Home Affairs said, referring to Islamic State.The men were detained in April under Singapore's Internal Security Act, the government said. It was not immediately clear if or when they would be charged or deported. Singapore's Straits Times called it the first detentions under the act involving a foreign workers' cell.The government of wealthy, multi-ethnic Singapore, which has not faced any militant attacks in decades, said investigations showed the ISB had identified several possible attack targets in Bangladesh.Islamist militants in Bangladesh have targeted atheist bloggers, academics, religious minorities and foreign aid workers in a series of killings that date back to February 2015 and have claimed at least 20 lives. A Hindu tailor was hacked to death on Saturday.