President Volodymyr Zelensky confirmed "an individual suspected of carrying out the terrorist attack" had been detained.
By Samuel OtienoThe attacks came as US President Donald Trump spearheads diplomatic moves to halt the war.
By Samuel OtienoZelensky said Ukraine saw hundreds of attacks and drone launches on Sunday.
By Samuel OtienoOn Saturday, Russia and Ukraine also conducted a significant prisoner-of-war exchange, with both sides reporting the return of over 240 captured fighters.
By Brenda SockyThe visit was discreetly planned, with details of the trip only being revealed after Prince Harry had already left Ukraine.
By Maureen Kinyanjui