The attack late on Saturday - a day after least 19 people, including nine children, were killed in strikes on the city of Kryvyi Rih - also damaged several houses, Mykolaiv Governor Vitaly Kim posted on X.
One of the women was hospitalised, and the other two were treated on outpatient basis, Ukraine's State Emergency Service said. It posted photos and videos of firefighters battling flames in a house at night.
The mayor of the Ukrainian capital said on Sunday Russia had also launched an overnight air strike on Kyiv, with the city's air defence forces trying to repel the attack.
"Explosions in the capital. Air defences are working. Stay in shelters!" Mayor Vitali Klitschko said in a post on the Telegram messaging app.
Reuters' witnesses heard blasts in what sounded like air defence units in operation.
There was no immediate comment from Russia.
Meanwhile, Polish and allied aircraft were activated early on Sunday to ensure the safety of Polish airspace after Russia launched airstrikes targeting western Ukraine, the Operational Command of the Polish armed forces said.
"The steps taken are aimed at ensuring security in the regions bordering the areas at risk," the Command said on X.
All of Ukraine was under air raid alerts on Sunday after the Ukrainian Air Force warned of Russian missile attacks.
Ukrainian President Volodymyr Zelenskiy posted on X about Friday's deadly strike on his hometown city of Kryvyi Rih.
"The missile struck an area right next to residential buildings - hitting a playground and ordinary streets," Zelenskiy wrote on X.
Both sides deny targeting civilians in the war that Russia started with a full-scale invasion on its smaller neighbour three years ago. Thousands of civilians have died in the conflict, the vast majority of them Ukrainian.
US President Donald Trump, who took office in January after pledging he would end the war in 24 hours, has sought to broker an end to the conflict.
The US last week late last month it had agreed with Russia and Ukraine two ceasefire accords, including one that would halt strikes on each other's energy infrastructure.Â
with AP
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