Israel-Gaza updates: Netanyahu says war to continue 'on all fronts'

The fatal shooting of a 17-year-old Palestinian-American in the West Bank on Friday remains under investigation, as mourners gathered Saturday for the teen's funeral.

Tawfiq Ajaq was killed near the city of Ramallah, according to the Defense for Children International - Palestine advocacy group.

Israeli police said they received a report Friday regarding a "firearm discharge, ostensibly involving an off-duty law enforcement officer, a soldier and a civilian." Police did not identify who fired the shot but described the shooting as taking place over people "purportedly engaged in rock-throwing activities" along a main highway.

Israeli police said its internal affairs department is investigating the incident.

An initial assessment by the Defense for Children International - Palestine also found that it was unclear who fired the shot that struck the teen.

A State Department spokesperson confirmed the death of a U.S. citizen civilian in the West Bank on Friday.

Asked about the incident at a briefing on Friday, U.S. National Security spokesman John Kirby said White House officials "don't have perfect context about exactly what happened here" but are "seriously concerned about it."

"We're going to be in constant touch with counterparts in the region to get more information," he said.

The teen's funeral was held Saturday in the West Bank. His friends said his family had returned to their home village in the Israeli-occupied territory from Harvey, Louisiana, about a year ago, according to Reuters.

President Joe Biden and Israeli Prime Minister Benjamin Netanyahu spoke on Friday, according to the White House.

This was the first known call between the two leaders since Dec. 23, 2023.

Biden and Netanyahu spoke about a two-state solution, among other things, one day after Netanyahu expressed opposition to a Palestinian state.

"The president still believes in the promise and the possibility of a two-state solution," White House national security spokesperson John Kirby said Friday. "He recognizes that it's going to take a lot of hard work. It's going to take a lot of leadership, there in the region, particularly, on both sides of the issue. And the United States stands firmly committed to eventually seeing that outcome."

"We're not going to agree on everything," Kirby said. He later added that Netanyahu’s comments will not change Biden’s "strong conviction" that “the best long-term solution for regional security, particularly the security of the Israeli people, is a free, independent Palestinian state that they can live in peace and security with -- and this is an important caveat -- with Israel's security also guaranteed."

Though Biden will continue to press for a two-state solution, "this isn't about trying to twist somebody's arm or force a change in their thinking," Kirby said.

Kirby said Netanyahu’s comments did not trigger the two leaders’ Friday call.

"This was a call that we've been, actually, trying to land on the schedule for quite a bit of time," he said.

-ABC News’ Fritz Farrow

Yagil Yaacov, now 13, was 12 years old when he was kidnapped at knifepoint from his room at the Nir Oz kibbutz on Oct. 7.

He told his captors -- allegedly members of the Palestine Islamic Jihad -- “Don’t take me, I’m too young,” according to his mother, Renana.

Yagil’s brother was also kidnapped and the two were separated. Yagil told ABC News in an exclusive interview that he was first taken to a safe house, and then to another home where he stayed for 30 days.

Yagil said during his time as a hostage he listened to some radio and learned a little Arabic to determine what was happening around him.

He was eventually reunited with his stepmother and brother.

Yagil's father is still being held hostage.

-ABC News’ Matt Gutman

Israeli Prime Minister Benjamin Netanyahu voiced his opposition to a Palestinian state in a post-war Gaza.

"For 30 years I have been consistent -- this conflict is not about the absence of a Palestinian state but about the existence of a Jewish state. Wherever we vacate territory, we receive terrorism," he said at a news conference. "It happened in Judea and Samaria and it happened in Gaza. In any agreement, Israel must control all territory west of Jordan. This is what I say to our American friends: I stopped the possibility of a security breach in the State of Israel. This did not prevent me from expanding the circle of peace to four Arab countries, and I am determined to expand it to other countries in the region, together with our American friendship."

State Department spokesperson Matthew Miller said in response that Israel, for the first time, has a "historic opportunity" to "deal with challenges that it has faced since its founding.”

"You see the countries in the region who are ready to step up and further integrate with Israel and provide real security assurances to Israel. The United States is ready to play its part, too, but they all have to have a willing partner on the other side," Miller said.

Miller also said, regarding the challenges facing Israel after the war eventually ends, "There is no way to solve their long-term challenges, to provide lasting security and there is no way to solve the short-term challenges of rebuilding Gaza, establishing governance and providing security for Gaza without the establishment of a Palestinian state."