One of the most dramatic events in the history of the city occurred on 16 December 1981. It was then that 9 protesters died (7 were shot dead; 2 died from injury complications) and another 21 were wounded in the pacification of Wujek Coal Mine. The Special Platoon of the Motorized Reserves of the Citizens' Militia ("ZOMO") was responsible for the brutal handling of strikers protesting against Wojciech Jaruzelski's declaration of martial law and the arrest of Solidarity trade union officials. On the 10th anniversary of the event, a memorial was unveiled by the President of Poland Lech Wałęsa.