Sinn Fein leader Gerry Adams is today deciding whether to travel to the US to answer questions about alleged links between his party, the IRA and the Colombian guerilla group Farc.

Sinn Fein leader Gerry Adams today said he had an ‘‘open mind’’ over an invitation by a United States congressional committee to give evidence in Washington on what he may have known about the arrest of three Irishmen in Colombia last year.

Three Irishmen detained for the last six months by the authorities in Colombia on suspicion of training left wing rebels are being denied a fair trial, their supporters claimed tonight.