The Singapore Police Force said Monday in a statement that it is investigating Christian Eliab Ratnam, who is serving his two-year mandatory military service.

The state-owned Straits Times said Ratnam’s Facebook page had pictures with anti-Islam statements. Ratnam’s Facebook page has since been deactivated.

The Defense Ministry said in a statement it was cooperating with the investigation.

Singapore enforces strict laws against public speech regarding race or religion in an attempt to maintain harmony among the country’s ethnic groups.

Muslims account for about 15 percent of Singapore’s 5.1 million population.