Spain on Sunday marks the eighth anniversary of the Madrid train bombings, this year embroiled in controversy over a decision by unions to hold nationwide protests over the economic crisis.
Some of the usual anniversary observances will be held on Sunday to remember the 191 people killed and more than 1,800 wounded in the terrorist attacks on morning rush-hour commuter trains on March 11, 2004.
But other observances, usually held on the day of the anniversary, will this year be pushed back a day, until Monday, due to the union protest.