A fourth man arrested by the Garda in connection with the Omagh bombing inquiry was today released without charge.
The man (38) was released by officers from Carrickmacross Garda Station in Co Monaghan this morning, a spokesman said.
The man, from Dundalk, Co Louth, was detained on Wednesday and was one of four men arrested between then and last Sunday.
Over 80 men have been arrested since the 1998 bombing but have been released without charge.
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