Support for Sinn Féin has shot up in the latest political opinion poll.

The party is up 5% to its highest rating in two years.

The latest Red C/Sunday Business Post poll puts Sinn Féin on 18% support in the wake of its motion of no confidence in Health Minister Simon Harris.

Despite the bashing it has taken in the last few weeks, the Government is only down one to 31%.

On the day of its Ard Fheis, it was good news for Fianna Fáil which is up two to 24% - but still 7% behind the main Government party.

Government partners the Independent Alliance are down three to just 2% support - with Independents overall up one to 15%.

Labour is down one to 5%, the Green Party also drops one to 2%, while Solidarity-PBP are down one to 1%.

The Social Democrats are unchanged on 2%.

Peadar Tobin's new party, Aontu, is included for the first time.

It is on less than 1% support in this poll - the same support level as Renua.

Reporting by Sean Defoe