A group of labour unions in Spain threatened to call a strike at all airports in the country during April and May over the government's decision to partly privatise civil aviation agency Aeropuertos Espanoles and Navigacion Aerea (AENA).
Labour unions, including Union General de Trabajadores, Comisiones Obreras and Union Sindical Obrero, have taken the decision after negotiations with the government over its plan to partly privatise AENA failed.
The union leaders said the strike action will be from 22 April to 25 April and could be extended to 22 May.
The unions said that following the privatisation, many airport workers will be asked to accept less pay and work in less safe working conditions in a part-privatised company.
The Spanish Government has incorporated a new holding company, under which private investors can buy 49% of AENA's shares, according to Businessweek.