New Delhi, March 11 -- Belarusian journalist Pavel Dabravolski was convicted Monday of treason and sentenced to nine years in a maximum-security prison, activists said, the fifth media worker to be jailed in two weeks in a relentless government crackdown on freedom of the press.

Dabravolski, who has reported for international and domestic news outlets and won numerous prizes for his work, was found guilty during a closed-door trial at Minsk City Court, according to the Belarusian Association of Journalists. The 36-year-old most recently worked for BelaPAN, which the Belarusian authorities have designated as extremist.

President Alexander Lukashenko, who has ruled Belarus for over three decades, has stayed in power through a relentless c...