Ukrainian Prosecutor General Yuriy Lutsenko has promised to do his best for solving the murder of journalist Pavel Sheremet.
"It has been reported from the incident scene that Pavel Sheremet was killed by a bomb. It is a murder. I will do everything I can so that we solve this crime together with colleagues," he wrote on Facebook.
Lutsenko expressed condolences to the co-founder and head of the Ukrayinska Pravda online edition, where Sheremet worked, and all friends of the deceased.
Read also: Sheremet’s car was blown up with remote-controlled bomb (VIDEO)
National Police of Ukraine Chief Khatia Dekanoidze confirmed the death of journalist Pavel Sheremet in the explosion.
"It is a point of honor for Ukrainian police to solve this crime," she said.
Detectives will consider every theory of the journalist's death, the National Police chief said.
Read also: Ukrainian reporter Sheremet's death was not immediate - Eyewitness (PHOTO)
Anton Gerashchenko, People's Front deputy, and advisor to the Ukrainian interior minister, said that professional activity would be the main theory of the death of journalist Pavel Sheremet.
"What has happened is a tragedy of the entire journalist community. [...] There is no doubt that a bomb planted by ill-wishers with the purposes of killing Pavel Sheremet went off," he said to 112 Ukraine television channel.
It must have been a radio-controlled or time bomb, he said, adding that the criminals most probably watched the journalist's daily routine.
Detectives are at work, in particular, they are examining videos from surveillance cameras, Gerashchenko said.
He did not rule out 'Russian trail' in the crime and compared it to the murder of journalist Georgiy Gongadze in 2000.
Journalist Pavel Sheremet was killed in a car explosion on Wednesday morning.