Romania will send provisions and equipment worth 3 million euros ($3.38 million) to Ukraine and has offered to care for the wounded in military and civilian hospitals.
Government spokesperson Dan Carbunaru made the announcement on Sunday.
Provisions to be sent include fuel, ammunition, bullet-proof vests, helmets, military equipment, food and water, he added.
In cooperation with Ukrainian border authorities, Romanian ambulances will pick up children, pregnant women and the elderly waiting in long queues to cross the border into Romania at the northeastern Siret crossing, speeding up the process, the official said.
Local authorities in border counties have already sent buses carrying food, blankets and winter clothes to Solotvyno and Chernivtsi just across the Ukrainian border.
The US and Iran failed to reach an agreement to end their war despite marathon talks that concluded on Sunday in the Pakistani capital Islamabad, jeopardising a fragile 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.