据俄罗斯媒体报道，莫斯科在周六加剧了对乌克兰的攻击，乌克兰总统泽连斯基谴责对一家输血中心的致命袭击称其为“战争罪行”。

另外，还发生了一次针对重要工厂的袭击，这两次袭击发生在基辅对俄罗斯油轮在刻赤海峡的打击几小时后。

这些袭击是继莫斯科上个月退出一项确保乌克兰粮食出口的协议之后的最新事件，尽管冲突仍在继续。

据泽连斯基称，俄罗斯军队袭击了乌克兰东北部哈尔科夫地区的输血中心，他还表示“有死者和伤者的消息”。

他说，在距离俄罗斯边境几十公里的库皮安斯克市，该中心受到了一枚“制导空中炸弹”的袭击。

他在社交媒体上写道：“救援人员正在扑灭火灾”，并补充说：“这种战争罪行充分展示了俄罗斯的侵略行为。”

Moscow escalated its attacks in Ukraine on Saturday, with President Volodymyr Zelensky denouncing a deadly strike on a blood transfusion centre as a "war crime."

A separate strike struck a key factory, both attacks coming just hours after Kyiv hit a Russian tanker in the Kerch Strait.

The attacks were the latest since Moscow exited a deal last month that had ensured Ukrainian grain exports despite the ongoing conflict.

Russian forces struck the blood transfusion centre in the Kharkiv region of northeast Ukraine, Zelensky said, adding that "dead and wounded are reported."

A "guided air bomb" hit the centre in Kupiansk, a city a few dozen kilometres from the Russian border, said Zelensky.

"Rescuers are extinguishing the fire," he wrote on social media, adding: "This war crime alone says everything about Russian aggression."