Toxicology tests are expected to determine the exact cause of death of the couple who were found dead at an apartment in Stoneybatter.

Reports today suggest John Glennon, who who's in his 60s and Debbie McEvoy, who's in her 50s, could have been dead for up to four days.

A gas leak has been ruled out as a factor in their deaths

Minister of State Joe Costello - who knew Mr Glennon - says it's vital householders check that their appliances are safe: