Editor's note: This is a developing story.
A Russian attack against Mykolaiv on April 11 killed four people and injured five, the Southern Defense Forces reported.
Shortly before the announcement, the Ukrainian military warned of a possible missile attack in the oblast. The Suspilne outlet reported explosions in the city at around 12 p.m.
The attack against Mykolaiv damaged residential buildings, industrial facilities, and cars, the military said.
Mayor Oleksandr Senkevych told a Kyiv Independent reporter that the strike targeted an old industrial facility.
Mykolaiv, the regional center of the eponymous Mykolaiv Oblast with a pre-war population of 470,000, lies roughly 60 kilometers (37 miles) north of the front line.
Mykolaiv Oblast is a regular target of Russian attacks.
The strike on the southern city came hours after Russia launched a large-scale attack against Ukraine, hitting energy infrastructure in five oblasts.
The same day, Russian forces shelled Huliailpole in Zaporizhzhia Oblast, injuring a 46-year-old woman, Governor Ivan Fedorov said.