The West Bank city of Jenin was the target of an ongoing Israeli "anti-terror" operation that claimed the lives of at least 10 Palestinians and injured as many as 40 others.

Prime Minister Benjamin Netanyahu said the assault on Jenin would be “extensive and significant,” as the military erected new checkpoints across the West Bank.

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Israel expands its campaign against militancy in the Palestinian territory after more than 15 months of deadly war in Gaza.

The Israeli military on Tuesday launched a deadly assault on Jenin in the illegally occupied West Bank, just days after a fragile ceasefire took hold in Gaza.

U.S. Secretary of State Marco Rubio spoke with Israeli Prime Minister Benjamin Netanyahu on Wednesday to reiterate Washington's support for its ally, and the two also discussed Iran and Israeli hostages in Gaza, the State Department said.

The action came a day after President Donald Trump said he will lift sanctions on ultranationalist Israeli settlers who attacked Palestinian villages.

The violence comes as Israeli Prime Minister Benjamin Netanyahu faces domestic pressure from his far-right allies after agreeing to the truce and hostage-prisoner exchange with Hamas.