Syria's foreign ministry on Thursday lodged an official complaint with the United Nations over what it says was an Israeli air strike on a military research centre near Damascus, a report said.
Though Israel and Syria are technically still at war, the ministry's complaint evoked a 1974 disengagement agreement between the neighbours.
Syria says could make 'surprise' response to Israel strike
Syria's ambassador to Lebanon said on Thursday that Damascus had the option of a "surprise decision" to respond to what it said was an Israeli air strike on a research center on the outskirts of the Syrian capital on Wednesday.
Syriacould take "a surprise decision to respond to the aggression of the Israeli warplanes," Ali Abdul Karim Ali was quoted as telling a Hezbollah-run news website.
"Syria is engaged in defending its sovereignty and its land," he added, without spelling out what the response might entail. Syria and Israel have fought several wars and in 2007 Israeli jets bombed a suspected Syrian nuclear site, without retaliation.
Voice of Russia, Reuters, AFP, RT, SANA