Israel on Monday said it was "deeply shocked" and "horrified" by a shooting attack at a Jewish school in France, in which an Israeli-French dual citizen and three children were killed.
Israeli Foreign Minister Avigdor Lieberman was "deeply shocked" over the incident, a statement from his bureau said.
"Only a person possessing demonic evil could conduct such a terrible murder of small children at a school," it quoted him as saying.
French authorities said at least four people were dead in the shooting attack at the Ozar Hatorah school in the southwestern city of Toulouse.
An Israeli relative of a deceased man named him as Jonathan Sandler, originally from Jerusalem, who had left to France last year.
The gunman shot a man outside the school before one of his weapons jammed and he then entered the school grounds where he sprayed the area with bullets, a local prosecutor said.
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Israeli Knesset Speaker Reuven Rivlin said the attack was against Jews and Israel and, as such should alert the international community.
"Jewish children and a teacher were murdered this morning because they were Jewish," he said in remarks broadcast by military radio.
"This just shows the horrors of anti-Semitism, which also manifests in anti-Israeli (acts)... This should be a warning signal to the world."
Earlier, Israeli Foreign ministry spokesman Yigal Palmor told AFP that they Jewish state was "horrified" by the attack.
"We trust the French authorities to shed full light on this tragedy and bring the perpetrators of these murders to justice," he told AFP.
The incident came just days after two previous shootings in the region by a man on a motorbike who killed three soldiers.
Police in southwestern France launched a major manhunt last week after the killing of three paratroopers and the wounding of another in two separate, but connected incidents.