Four suspects arrested over the robbery of a cash-in-transit van have been released.
The three men and one women were detained in relation to the armed robbery last Saturday in Walkinstown, Dublin.
A gun and cash, believed to be the 40,000 euro taken in the raid, were also seized during a series of searches.
A Garda spokeswoman said a file will be prepared for the Director of Public Prosecutions in relation to this investigation.
Seven armed robberies were carried out within five days over last weekend.
Justice Minister Alan Shatter and Garda Commissioner Martin Callinan vowed arrests would be made over the raids.