15 May 1977,
Amnesty's second week ends. Organized by the Commissions by Amnesty, they mobilized throughout Euskal Herria from 8 May to ask for an amnesty to all the Francoist reprisals. The police resisted the citizens, resulting in seven deaths throughout the week and ten injuries.
Source:
Kai Saez de Egilaz, Iñaki Egaña, Floren Aoiz and Antton Lopez, 1977: Year of amnesty. 40 years later (Fundación Iratzar, June 2017).