A riot ( the `` Dekemvriana '' ) erupted Process_start and Greek government gendarmes , with British forces standing Placing in the background , opened Openness fire on a pro-EAM rally , killing Killing 28 demonstrators and injuring Bodily_harm dozens .

Twelve Israeli soldiers , gendarmes , and civilian security guards , including three high-ranking officers , were killed Killing in the battle Attack , as were all three of the Palestinian attackers .

An investigation Scrutiny was started Process_start in 2011 by gendarmes , and in September 2019 the theory Statement that a fire Use_firearm had started Process_start in a toilet was disproved .