An Israeli airstrike on a car in Gaza City killed at least four people and wounded several others, local health authorities said on Saturday, in a further test of a fragile ceasefire between Hamas and Israel.
The Israeli military said it was checking the report.
Witnesses and medics said the attack in the densely populated Rimal neighbourhood set the vehicle ablaze. It was not immediately clear whether the four dead were passengers of the car or included passersby. Dozens of people rushed to extinguish the fire and rescue the victims.
The October 10 ceasefire in the two-year Gaza war has eased the conflict, enabling hundreds of thousands of Palestinians to return to Gaza's ruins. Israel has pulled troops back from city positions, and aid flows have increased.
But violence has not completely halted. Hamas has been seeking to reassert itself and some are concerned about a de facto partition of the territory, where conditions are dire. Palestinian health authorities say Israeli forces have killed 316 people in strikes on Gaza since the truce.
Israel says three of its soldiers have been killed since the ceasefire began and it has attacked scores of fighters.
Israel and Hamas have repeatedly traded blame for truce violations.
President Donald Trump said on Sunday the US Navy would immediately start blockading the Strait of Hormuz, raising the stakes after marathon talks with Iran failed to reach a deal to end the war, jeopardising a fragile two-week ceasefire.
Russia and Ukraine accused each other on Sunday of breaching the 32-hour ceasefire in their four-year war, reporting more than a thousand drone and shelling attacks just hours after the truce began on Saturday to mark Orthodox Easter.
At least 30 people were killed on Saturday in a stampede at the Laferriere Citadel in the northern countryside of Haiti, authorities said, warning that the death toll could rise.
A cyclone battered New Zealand's North Island on Sunday, cutting power to thousands of residents and forcing hundreds to evacuate, as officials warned conditions would worsen through the day.
Negotiations between the United States and Iran appeared to have concluded for now, Iran's government has announced early on Sunday, after a series of talks in Pakistan to end the six-week war between Washington and Tehran.