Singapore Monday described the beheading of British aid worker David Haines by the Islamic State militants as "barbaric" and "deeply reprehensible".
The IS (previously known as Islamic State in Iraq and Syria [ISIS]) is a serious terrorist threat that must be dealt with comprehensively, the Ministry of Foreign Affairs said in a statement.
"In this regard, Singapore welcomes the formation of the international coalition to combat the ISIS threat and also welcomes the declaration by regional Arab countries in Jeddah to stand united against ISIS," Xinhua quoted a spokesperson of the ministry as saying.
"This is critical to cut off support for ISIS in terms of the movement of fighters, materials and funding as well as the ideological battle," he added.
Video of the beheading of Haines emerged Saturday. It was the third video of beheading by the ISIS in less than a month.
In the latest video, a masked man also threatened to take the life of another British hostage, Alan Henning. The taxi driver was reportedly abducted while part of a convoy delivering aid to Syria.