It also said that the site "was targeted by an Israeli aerial aggression in an attempt to cover up for the collapse of terrorist organizations in Daraa and Quneitra", referring to the recent surrender of rebels in Syria's long-running civil war.
Israel has assisted the evacuation of 422 Syrians - including members of the White Helmets rescue group - to neighboring Jordan in an worldwide humanitarian operation coordinated by the United Nations.
"We pay tribute to the fearless and selfless work that White Helmets volunteers have done to save Syrians on all sides of the conflict".
Hunt described the White Helmets as "the bravest of the courageous", adding that "in a desperate situation this is at least one ray of hope".
A defense official, speaking on condition of anonymity because he wasn't authorized to discuss the event with the media, said Israel had identified two surface-to-surface SS-21 rockets launched from Syria carrying a payload of hundreds of kilograms that they believed were headed for Israeli-controlled territory.
Canadian officials told public broadcaster CBC that they "agreed" to accept 50 White Helmets volunteers and their families, which could mean up to 250 people.
The plan had been to evacuate 800 White Helmets and their families, but only 422 made it.
Israel at the weekend played a critical role in rescuing hundreds of humanitarian workers and their families trapped in southern Syria.
The White Helmets group has advertised itself as a volunteer force and Syria's "civil defense".
The White Helmets have enjoyed backing and received finances and training from the United States and other Western nations for years.
Former UK ambassador to Uzbekistan-turned blogger Craig Murray has not been so glowing about the prospect of White Helmets members being granted resettlement in Britain.
He said they would be allowed to stay in Jordan for a period of time not exceeding three months.
"The Russians are speaking about [the 100km buffer zone] and are committed to it, but we said there are also long-range weapons beyond this zone, and all those forces must leave Syria", the official said.
The officials said planning for the evacuation has been taking place for some time, but accelerated after last week's North Atlantic Treaty Organisation summit in Brussels.
Since the offensive began, Jordan said it will not open its borders to the newly displaced Syrians. They have reached Jordan, thank God.
Jordanian Ministry of Foreign Affairs spokesman Mohammad al-Kayed told Petra that while Jordan already hosts 1.3 million Syrian refugees, it "won't hesitate to perform its humanitarian duty despite the great burdens placed on the Kingdom".
Aron Lund, a Syria expert with the Century Foundation, said after the worldwide community's funding and promoting the White Helmets for years, the evacuation should not be a surprise.
"All sides benefit from giving the losing team a safe exit", he said.
Syrian state television said on Sunday an Israeli air strike had hit a military post in the city of Misyaf in Syria's Hama province but caused only material damage.