LVIV, Ukraine (Reuters) - At least 21 people were killed and 112 wounded in shelling in the eastern Ukrainian city of Kharkiv in the last 24 hours, regional governor Oleg Synegubov said on Wednesday.

       The authorities have said Russian missile attacks hit the centre of Ukraine's second-largest city, including residential areas and the regional administration building.

       (Reporting by Reuters; Editing by Jacqueline Wong)