German submarine U-714 was depth charged and sunk off Eyemouth, Berwickshire by South African frigate Natal and British destroyer Wivern.
German submarine U-1021 struck a mine and sank in the Bristol Channel.
Following the student rally of March 8, Edward Gierek led a mass gathering of 100,000 party members from the entire province. He was the first Politburo member to speak publicly on the issue of the protests then taking place and later claimed that his motivation was to demonstrate support for Gomułka's rule, threatened by Mieczysław Moczar's intra-party conspiring. Gierek used strong language to condemn the purported "enemies of People's Poland" who were "disturbing the peaceful Silesian water". He showered them with propaganda epithets and alluded to their bones being crushed if they persevered in their attempts to turn the "nation" away from its "chosen course." Gierek was supposedly embarrassed when participants of the party conference in Warsaw on March 19 shouted his name along with that of Gomułka, as an expression of support. The 1968 events strengthened Gierek's position, also in the eyes of his sponsors in Moscow.