Six Eirigi protesters including Dublin city councillor Louise Minihan locked themselves inside the headquarters of Anglo Irish Bank in Dublin this morning.
They are demonstrating against the National Asset Management Agency (NAMA) which owns the debt-ridden bank.
The republican socialists held a rally outside the building today.
Eirigi chairman Brian Leeson said: “Ireland is in crisis. Half a million people are unemployed while thousands more are emigrating.
“All the while the Dublin government is trying desperately to save the banks and the business class, while workers suffer,” he said.
“Drastic action must be taken to oppose these anti-social policies. Today’s action has been taken in this spirit.
“Eirigi is calling on community groups, trade unions and every organisation that represents working people to take similar action to bring this appalling situation to an end. ”