The website of private university Curtin Singapore was attacked on Sunday by hackers claiming to be from the Islamic State in Iraq and Syria (ISIS).
The website was taken offline for a day following the cyber intrusion and restored by mid- afternoon on Monday.
The Straits Times understands that the hacked website had a picture of the extremist group's flag and the words "Hacked by Islamic State (ISIS) - We Are Everywhere", with a link to a Facebook page that has since been removed.
An audio plug-in played a song in Arabic.
Several websites around the world were hacked into over the weekend, and displayed similar words and a picture of the group's flag. In Singapore, a number of websites were defaced, including those of a photo studio and a fashion design competition, as well as a blog.
"Curtin University became aware on Sunday that its Curtin Singapore website was defaced and immediately disabled the website," said Mr Ian Callahan, vice-president of corporate services for the Australian university. "Curtin will continue to review the security of the website."
Police confirmed that a report was lodged. Investigations are ongoing.