Ulster's match tonight in rugby union's Guinness Pro 12 has been called off thanks to a frozen pitch.

They were due to welcome Italian side Zebre.

Ulster confirmed the news on their official website, saying "the surface was deemed unplayable due to certain areas of the pitch being frozen".

The province are also informing any supporters that purchased tickets for the game to keep hold of them as "they will be valid for the rearranged game". 

BREAKING: This evening’s Guinness PRO12 fixture v Zebre has been postponed due to parts of the pitch being frozen

— Ulster Rugby (@UlsterRugby) November 25, 2016

Leinster and Connacht are in action tonight in the Guinness Pro 12 however.

Leinster face Scarlets away at Parc y Scarlets, while Connacht are at home as they welcome Cardiff Blues to the Sportsground.

Munster face Benetton Treviso at Thomond Park on Saturday afternoon.