India, Sept. 1 -- Ukrainian police said on Monday that they suspect Russian involvement in the murder of former parliamentary speaker Andriy Parubiy.

Ivan Vyhivskyi, the head of the Ukrainian police, vowed to hold everyone involved in the crime accountable.

"We know that this crime was not accidental. There is a Russian involvement. Everyone will be held accountable before the law," Vyhivskyi said on Facebook.

Earlier in the day, Ukrainian President Volodymyr Zelensky said that a suspect had been arrested in the murder of Andriy Parubiy, a crime that shook the war-torn country.

"The suspect has given an initial testimony. Urgent investigative actions are currently underway to establish all the circumstances of this murder," Zelensky s...