Six TDs could be facing disciplinary action for breaches of the Dail dress code.

It's after they wore wearing jumpers in the Dáil chamber bearing the slogan 'REPEAL', referring to the 8th Amendment to the Constitution on abortion.

The Dáil's disciplinary committee is now investigating whether the jumpers were a breach of House rules.

But it's not clear whether wearing such jumpers is actually a breach of the current rules at all - or, if not, whether rules to ban similar moves have any hope of being introduced.

The Ceann Comhairle has previously clarified that the house rules ban members from wearing "emblems of a party political nature", but it's not clear whether the 'REPEAL' jumpers fall into this category.

He's asked the Oireachtas library service to research the house rules in other parliaments, as part of a process to see if Ireland should tighten its rules on clothes in the chamber.

Our political correspondent Gavan Reilly reports: