The health unions were given the excuse to call a general one-day strike or 'national day of action' for 22 September.

A union representing 16,000 teachers plans to hold five more one-day strikes over the next two weeks.

A student union called for a one-day strike at local colleges.

The union voted for a one-day strike on 30 June 2011.

How much pressure these one-day strikes will bring to bear on employers is not clear.

An additional one-day strike took place across the country on 30 November.

Thousands of civil servants hold a one-day strike over pay.

Scientists have been holding a one-day strike in an attempt to get the same pay as their European colleagues.

On 23 April, a one-day general strike brought the country to a halt.

The union has set Tuesday as the target day for a one-day strike.