Local police said they were not yet able to comment and it is unclear whether the background of the attack was criminal or terrorism.
The three children were taken for medical examination, after which they will be handed over to welfare authorities for further care.
Shin Bet and police arrest four suspects for attacks on Palestinians in Jit, including arson, stone-throwing, and a fatal shooting.
Police found that he had arrived in Greece on July 20 using the fake document.
Following an investigation at the police station in Netanya, the suspect, a 32-year-old city resident, was jailed, and his detention was extended.
National Security Minister Itamar Ben-Gvir responded to the decision by criticizing state investigators and praising the conduct of Ch.-Supt. Amit Pollak.
The raid was part of an undercover investigation opened in the previous weeks.