Ministers Heather Humphreys and Jack Chambers have called on Sinn Féin leader Mary Lou McDonald to give back a €1,000 donation that she received from convicted criminal Jonathan Dowdall.
Ms Humphreys also hit back at comments made by Ms McDonald at the weekend suggesting that gangland murders in Dublin and crimes carried out by the IRA during The Troubles could not be compared.
Dowdall was sentenced to four years in jail for his part in the Regency Hotel shooting in 2016 in October.