They have been remanded in custody.
Three Romanian men have appeared in court charged with the alleged robbery of two sex workers in Roscommon last month.
Judge Mary Cashin heard that the three men were alleged to be part of a wider criminal gang.
One man was charged with robbery, while the two other men were charged with robbery and possession of a knife.
All three were arrested in Dublin yesterday.
They were remanded in custody to appear at Harristown District Court tomorrow.