He is also accused of trying to stage an unsanctioned news conference.
Earlier today, the European Union's Austrian presidency expressed deep concern over Kazulin's arrest.
In a written statement issued in Vienna today, the EU urged Belarus to guarantee the personal safety of all those taking part in the March 19 election.
Belarus Votes 2006
MEET THE CANDIDATES: Read brief biographies of the four candidates in the March 19 election.