The day before the vote, Mr. Tubman's supporters clashed with the police, who responded with tear gas and gunfire.
Violence has accompanied the election campaign, as supporters of rival candidates have clashed.
Several hundred supporters who tried to hold a march in Jidhafs, on the outskirts of Manama, to demand the activists' release clashed with authorities.
At least four people were reported killed when Ialá's supporters clashed with police after the results were announced.
On 10 September 2011 supporters of Sierra Leone's major political parties clashed violently in the city of Bo.
Orangemen and their supporters clashed with police until the residents were persuaded to clear the road and the march went ahead.
As the case proceeds in the court of law, supporters of the two sides clash on the streets.
The Governor was stoned and rival supporters have clashed with clubs.
According to witnesses rebel supporters clashed with pro-Gaddafi security forces in Tripoli amid sustained explosions and gunfire.
Myself and several other people understand that supporters and opponents will clash on the day that Thaksin returns home.