On 14–19 December 1970, mass demonstrations against the price rises broke out in the northern (Baltic coast) cities of Gdańsk, Gdynia, Elbląg and Szczecin. In violent confrontations at those and other locations 19 public buildings were destroyed or damaged, including headquarters of the party in Gdańsk and Szczecin. The PZPR Central Committee was deliberating in Warsaw, but a smaller conference, led by Gomułka, issued an authorization for a limited use of lethal force to defend lives and property. Gomułka, however, was determined to impose a forceful resolution of the conflict. Among the party leaders who arrived on the coast and directed the local enforcement actions, initially in Gdańsk, were Zenon Kliszko and Stanisław Kociołek. In Gdynia, soldiers were instructed to prevent protesters from returning to factory buildings; they fired into a crowd of workers emerging from commuter trains. Fatal confrontations took place also in Szczecin. Possibly about fifty people were killed in the coastal region in December.