A Dáil committee is to investigate remarks made by People Before Profit TD Bríd Smith about a High Court judge.

The Committee on Procedure met today to consider the comments made by Ms Smith.

The former minister for justice Charlie Flanagan complained to the Ceann Comhairle who referred the matter to the committee.

The committee has unanimously agreed to investigate the matter and it will write to the deputy seeking a written submission from her.

Ms Smith criticised High Court judge Mr Justice Garrett Simons following his judgment that a sectoral employment order was unconstitutional.

Ms Smith described the judgment as a "declaration of war" on workers' protections. She also posted a meme featuring the judge on her Facebook page.

The committee will resume its consideration of Deputy Smith's remarks in the coming weeks.