Israel has vowed to step up pressure on Hamas, who it has blamed for the disappearance of three Israeli teenagers.
Army spokesman Lt Col Peter Lerner said militants "will not feel safe" until the teenagers, including a 16-year-old American, return home.
The two 16-year-olds and a third, 19-year-old man disappeared on Thursday night after their left a Jewish settlement bloc where they were students.
Since then the army has carried out house-to-house searches, round-ups and interrogations in the nearby Palestinian city of Hebron and outlying villages.
More top news
France Foreign Minister called for the action after a meeting the six European foreign ministers in Berlin.
He said that he would put himself forward if a fresh contest is held amid growing calls for him to stand down within the party.
Pet owners and cat lovers are being warned to stay on high alert after the so-called Croydon Cat Killer appeared to strike in another city.