Ukraine’s second-largest city of Kharkiv has witnessed relentless bombardment by Russian forces since the start of the war nearly a month ago. The barrage of artillery shelling has laid waste to residential areas and government buildings, leaving dozens dead and wounded. On Sunday, five people – including a nine-year-old boy – were killed in a Russian artillery attack, according to local authorities in the northeastern city, about 50km (31 miles) from the border with Russia and home to many Russian-speaking Ukrainians.