The Garda Commissioner says she's not aware that people can hire a gun for 200 euro in Dublin.

Noirin O'Sullivan's taking questions from TDs and Senators at the Justice Committee this afternoon.

Independent TD from Galway, Noel Grealish says he's heard there's a 'gun for hire culture' in the Capital where a handgun can be secured for 200 euro and a machine gun for 500 euro.

The Commissioner says while they are tackling the availability of firearms: