Viewers were left “shocked” after a TG4 Halloween prank during a weather report on Monday night.

Weather presenter Caitlín Nic Aoidh disappeared after she was struck by a lightning midway during the forecast.

TG4 cut the programme and went to a off-screen title card.

One viewer asked on Twitter: “What just happened on @TG4TV ?

Did she just get electrocuted or was that a Halloween prank?”

Many viewers were impressed by TG4’s “very clever” prank.

“TG4 just produced the greatest weather report of all time,” tweeted @TiobraidArann1, while another viewer John Roycroft said: “Still not as scary as the usual weather in Galway #TG4W.”