SINGAPORE - Singapore strongly condemns the reported killing of Japanese hostage Haruna Yukawa by militant group the Islamic State in Iraq and Syria (ISIS).

In a statement issued on Sunday, a Ministry of Foreign Affairs (MFA) spokesman said: "Singapore strongly condemns the terrorist acts by and continued brutality of the ISIS, most recently seen in the reported murder of Japanese national Haruna Yukawa."

The statement added: "We extend our deepest condolences to the family of Mr Yukawa and reiterate our repeated calls for ISIS to release Mr Kenji Goto and all other hostages immediately."

The statement ended with a call to action for different countries to combat terrorism together.

"This latest incident once again reinforces the urgent need for the international community to work closely together to neutralise the threat posed by ISIS and other terrorist organisations."

In a recording posted online on Saturday, Mr Goto was seen holding an apparent photograph of Mr Yukawa's slain body, with an audio recording in which Mr Goto spoke of the ISIS group's demand for a prisoner exchange to guarantee his release.