"We're very disturbed by those images and what we're seeing," US Secretary of State Marco Rubio said on Saturday.
"We've asked the Israelis and continue to ask them to crack down on that stuff."
His comments to reporters came after the widespread dissemination of video showing multiple individuals attacking Heidi Levine, an American photojournalist with the Washington Post.
Levine was one of at least two people injured in the Friday incident, which took place as Israeli settlers attacked Palestinian civilians.
Levine was injured in the attack despite wearing a protective vest with "PRESS" clearly visible.
The US photographer was knocked to the ground and repeatedly kicked, and her phone and camera were taken.
European diplomats and a French mayor also were attacked in the occupied West Bank, Belgium's foreign minister said.
Rubio said the US had inquired about the event that included Levine's attack and expected to hear back from the US Embassy in Jerusalem by Sunday.
Israeli settlers in the West Bank have been involved in at least 170 attacks on Palestinians since September 27, around the start of the annual olive harvest, according to Yesh Din, an Israeli settlements monitoring group.
At least four people have been killed and more than 100 injured since the harvest began, according to the Palestinian health ministry.
Activists say Israeli authorities do little to stop attacks that involve weapons ranging from slingshots to guns.
In Saturday's attack in the Christian village of Taybeh, settlers targeted Belgium's consul general, French and Polish diplomats and Catholic representatives, Belgian Foreign Minister Maxime Prevot said.
"A French mayor was assaulted and a Belgian vehicle damaged. Our team is safe," Prevot said.
He linked the attack to what he called Israel's "illegal settlement policy" and pledged to push for further European Union sanctions.
"Impunity for violent settlers must end," he added.
Israeli army radio military correspondent Doron Kadosh wrote on X the settlers attacked the vehicles of diplomats from France, Belgium and Poland.
He said that, according to eyewitnesses, seven masked men surrounded a diplomatic vehicle with their off-road vehicles before demanding identification and smashing a window.
Video footage shows a diplomat lying on the ground.
Video shared by an activist at the scene, Amit Orfali, shows the French mayor, wearing a tricolour sash, leaning against a vehicle while sitting on the dusty ground.
Other clips showed young masked men knocking insistently on a driver's side window and asking for IDs, while other masked men carrying sticks advanced in the distance.
Orfali said the masked men "threatened to kill us".
Israel's military confirmed Saturday's attack on the diplomats and called it a "severe act of violence" but said no soldiers were at the scene.
Israeli police said they had opened an investigation and vowed to work "until everyone who took part in these cases is brought to justice".
Foreign Minister Gideon Saar on X condemned the "severe acts of violence by Israeli rioters", adding that his ministry was in contact with ambassadors from the countries concerned.
But Netanyahu's office later issued a statement warning against "premature conclusions" in the incident and noted concerns about "a co-ordinated campaign to smear Israel".
Levine was treated at hospitals in Ramallah and Israel for cuts across her body, a broken rib and four broken vertebrae, the Washington Post reported.
It said Levine needed surgery on her hand after a finger was ripped open, exposing bone.
with AP and Reuters
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