The five-year-old brother of the girl reported to be the first child killed in the Russian invasion of Ukraine has died, according to reports.
Polina, 10, died alongside her parents when the family was gunned down in Kyiv by Russians, according to reports earlier this week.
Her brother Semyon, five, and her sister Sofia, 13, were critically ill in hospital.
Semyon died in hospital on Wednesday, a family friend has told the Telegraph.
Vets Anton Kudrin and Svetlana Zapadynskaya along with her three children were hit by a hail of bullets as they tried to flee Kyiv in a car on Saturday, reports have claimed.
Anton, Svetlana and Polina were said to have died at the scene.
Semyon died at the Okhmatdyt Children's Hospital on Wednesday, a family friend said, where Sofia remains unconscious and in a critical condition - the Telegraph says.
Deputy Mayor of Kyiv Volodymyr Bondarenko, shared a picture of Polina on Monday.
"Her name was Polina,” Mr Bondarenko said. “She studied in the 4th grade of school in Kyiv.”
At least 16 children have died in Ukraine this week.
A six-year-old girl died in the Russian shelling of her family’s apartment in Mariupol.
Alisa Hlans, seven, was killed when her kindergarten in Okhtyrka was hit by Russian munitions.
A teenage girl died after being rushed to a hospital in Kharkiv with severe lung damage.
A 17-year-old boy was killed in an attack on the village of Semikhatky and two other children were killed in shelling in Chuhuiv and Mariupol.
A six-year-old girl called Sofia Fedko and her brother Ivan, who was only a few weeks old, are said to have died when the family came under fire near Kherson.
A 10-year-old boy died of gunshot wounds on his way to Ohmatdyt Children’s Hospital in Kyiv.
Iliya, 16, was fatally wounded on Wednesday while playing soccer in Mariupol when shelling started amid the Russian invasion of Ukraine. The explosive hit the soccer field near a school in the Azov Sea city.
