A coalition led by current Prime Minister Sanae Takaichi is expected to clinch a decisive win, according to media projections after polls closed.

The suspects include the alleged gunman, Lyubomir Korba, whom Russia says fled to the UAE after the attack.

Thai voters are choosing between sweeping change or more of the same in an election called after several coalition governments collapsed.

Reports say Wiandre Pretorius, who last week said he survived an assassination attempt, shot himself.