A car bomb killed prominent Belarus-born journalist Pavlo Sheremet on Wednesday while he was driving in central Kiev, state news agency Ukrinform reported.
Sheremet, who wrote for the Ukrainska Pravda newspaper and hosted a show on Radio Vesti, had lived in Kiev for the past five years, the report said.
He was killed in the explosion outside a McDonald's restaurant on the corner of the Bohdan Khmelnytsky and Ivan Franko streets around 7:30 am (0430 GMT), according to the report.
Sheremet, 44, had been a television presenter in his native Belarus, but a conflict with the ruling regime saw him given a suspended sentence and he fled the country, Ukrainska Pravda reported.
The car belonged to the Ukrainska Pravda's editor-in-chief, Olena Prytula, but she was not in the vehicle, the newspaper said.
Ukrainska Pravda's founder, Georgian-born investigative journalist Georgiy Gongadze, was abducted and murdered in 2000, and police never found his killer. Gongadze's supporters accused the country's leadership of complicity in the killing.