Responding to the incident, the Embassy said it was "appalled" to learn of the staff member's actions.
"The Director General of Israel's Ministry of Foreign Affairs has instructed that requisite strong disciplinary procedure will be adopted against the individual after his meeting with the Singapore authorities, reflecting the severity with which Israel views this incident, especially in light of the close and friendly relationship between Singapore and Israel," the embassy said in a statement.
The images show the Singapore flag on a table purportedly at a condominium, with items strewn on it such as bottles and a pair of sunglasses, according to a report by Channel News Asia.
A police report was made on Sunday.
Also Read
The Israeli Ambassador was summoned by the Ministry of Foreign Affairs (MFA) in Singapore, according to media reports.
Meanwhile, the MFA welcomed the Israeli Embassy's apology as well as its assurances that it would undertake the necessary disciplinary actions against the person in question.
"All persons, including diplomats and foreigners in Singapore, must respect and abide by our laws and regulations," it said in a statement.