Tributes are pouring in for the late Fair City star Karl Shiels, who has died at the age of 47, with the actor hailed as a "uniquely talented individual" and a "remarkable force in Irish theatre."

Shiels made his Fair City debut in 2014 and the series' Executive Producer Brigie de Courcy said he "made his mark immediately" on Carrigstown.

"Karl Shiels made his mark immediately playing the formidable Robbie Quinn, and always brought such, warmth, talent and humour to Carrigstown," she said in a statement.

"We are absolutely devastated and he will be so greatly missed by the entire cast and crew. Our thoughts are with his family at this incredibly sad time."

Shiels' agent Lisa Richards described him as a "uniquely talented individual, simultaneously intense, light hearted, funny, sharp witted, outspoken and intensely powerful as an actor, director and artistic director."

Richards added that he "was a remarkable force in Irish theatre and hugely loved and respected by all who worked with him."

Eric Lalor, who played Cathal on the soap, said he is "absolutely stunned and heartbroken" at the loss of his "great friend."

Actor Chris O'Dowd said Shiels was "the kind of actor you'd always be happy to see pop up on screen, the kind of fella you'd always be delighted to bump into in the street."

Director Lenny Abrahamson recalled how "charming and brilliant" Shiels was when they worked together on the drama series Prosperity.

Author Paul Howard hailed him as a "great talent".

Actress and comedian Deirdre O'Kane said the news was "heartbreaking" and said Shiels was "so loved by absolutely everyone".

Former colleagues, friends and fans have also paid tribute: