Israel-Gaza updates: Nasser Hospital no longer 'functional,' WHO chief says

FBI Director Christopher Wray made an unannounced trip to Israel Wednesday where he met with officials to discuss the “threat landscape" facing the U.S. and Israel, the FBI said.

"Director Wray’s key focus is the work the FBI continues to do to confront the elevated threat as foreign terrorist organizations have expressed support and praise for the attacks on Israel and threatened to attack U.S. interests both abroad and in the homeland," the FBI said in a statement. "The FBI has and will continue to be responsive to requests from the Government of Israel to provide support in their ongoing efforts to keep their citizens safe from the threats and acts of terrorism."

The delegation that Israel sent to Egypt to take part in negotiations on Tuesday over a potential cease-fire or hostage deal with Hamas will not return for more talks this week, an Israeli political source told ABC News on Wednesday.

Officials from Egypt, Qatar and the United States have been mediating talks between Israel and Hamas since war broke out on Oct. 7.

Israeli Prime Minister Benjamin Netanyahu said Wednesday that negotiations "can move forward" when "Hamas drop[s] their delusional demands."

But Israeli labor leader Merav Michaeli is criticizing the prime minister, saying, "Netanyahu's refusal to send a delegation to the follow-up talks on the hostage deal shows, once again, that he really does not see an urgent need to bring the hostages home. We must not allow Netanyahu to abandon our hostages for the benefit of his political survival."

-ABC News' Jordana Miller and Morgan Winsor

A U.S. citizen has died in the West Bank, the State Department confirmed on Tuesday -- marking what is potentially the second killing of an American in the occupied territory in recent weeks.

State Department Spokesperson Matthew Miller said during a press briefing on Tuesday that the administration was "still in the gathering information stage." He did not provide additional details, including identifying information for the deceased or the apparent cause of death.

The death comes after a 17-year-old Palestinian-American was fatally shot in the West Bank on Jan. 19. Israeli police said at the time that its internal affairs department was investigating a firearm discharge involving an off-duty law enforcement officer, a soldier and a civilian.

-ABC News' Shannon K. Crawford

The U.S. believes Israel is still "acting in good faith" on hostage negotiations, State Department spokesperson Matt Miller told reporters during a press briefing on Tuesday.

Miller was mostly tight-lipped on the latest round of discussions with Egypt, the U.S. and Qatar in Cairo, though he did say that the U.S. assesses that Israel still shares the administration's interest in reaching an agreement despite its potentially looming Rafah offensive and reports of the country's limited involvement in the talks.

"We have seen public statements from the government of Israel that they want to secure the release of hostages," Miller said.

Prime Minister Benjamin Netanyahu also reiterated to Secretary Antony Blinken last week in Israel that it is a "top priority" for him to secure the release of the hostages, Miller continued.

"So yes, we do believe they're acting in good faith," he said.

-ABC News' Shannon K. Crawford