Unions representing Ryanair cabin crew in Spain have announced plans to hold 10 days of strikes in September unless the airline changes its plans to close several bases in the country.

The SITCPLA and USO workers' unions said in a statement they planned to formally lodge notice of strikes unless Ryanair makes concessions in the coming days.

The strikes are planned for 1-2 September, as well as the 6th, 8th, 13th, 15th, 20th, 22nd, 27th and 28th. 

Unions representing Ryanair staff in Britain, Ireland and Portugal have also announced plans to strike in the coming weeks over pay and conditions.