Slovakia's Prime Minister Robert Fico has accused the country's president of destabilising the nation after the killings of an investigative journalist and his fiancee.

A journalist shot dead in Slovakia was working on a story about the activities of Italian mafia in his country and their links to people close to Slovakian Prime Minister Robert Fico.

GARDAÍ are expected to travel to Slovakia as part of their investigation into how explosives were smuggled into Ireland after a botched security operation by Slovak police.

JUSTICE Minister Dermot Ahern has asked for a full Garda report into how explosives were brought into Ireland following a botched security operation by Slovak police.