Israeli and Turkish officials refused to comment Tuesday on a report by Britain's Sky TV that the Islamic State group planned to attack Jewish school children in Turkey.
The report came after Israel advised its citizens on Monday to leave Turkey "as soon as possible," citing the potential for jihadist attacks, and mere days after the Turkish police issued a warning on Saturday night, according to which ISIS was planning to attack synagogues and churches during the Christian holiday of Easter.
"Terrorists from the so-called Islamic State have advanced plans to murder Jewish children in Turkey, targeting kindergartens, schools and youth centers," Sky reported.
"The most likely target of an attack is Istanbul's synagogue in Beyoglu, which also has a community centre and a school attached to it."
Asked by AFP to comment, Israeli Prime Minister Binyamin Netanyahu's office and Israel and Turkey's foreign ministries refused.
Three Israelis were among four people killed in a March 19 suicide bombing in Istanbul.
An Iranian national was also killed and 39 people wounded when a terrorist blew himself up on a shopping street in the heart of the city.
The Turkish government said the bomber had links to ISIS.
The group has been blamed for four bombings that have rocked Turkey in the past eight months, including a massacre at a peace rally in the capital Ankara in October that claimed 103 lives.
Sky reported on its website that unidentified "intelligence officials" said that a fresh attack was imminent, based on information from six ISIS operatives arrested in southern Turkey.
AFP contributed to this report.