A damaged glass bottle lobbed on to the pitch precipitated the beginning of the second half at Ibrox to be delayed — a transfer that was branded "shameful".
Joe Hart demanded the shards have been cleared off the park earlier than the restart between Rangers and Celtic might go forward.
Sky co-commentator Ally McCoist branded it an act of "gross stupidity" whereas colleague Andy Walker additionally hit out on the missile that got here from the house finish.
Kick-off for the second interval was delayed by three minutes as Rangers tried to get again into the sport which they have been behind 2-1, with floor workers approaching to take away the objects.
Walker believes the second of insanity is damaging the fame of the world well-known derby.
The previous Celtic striker stated: "We're attempting to promote this recreation around the globe. Shameful anybody would throw something on to the pitch, not to mention a damaged bottle."
Dismayed Rangers hero McCoist added: "You suppose nothing would shock you any extra however dearie me. Gross stupidity."

Chris Sutton waded in on Twitter: "Absolute scumbags throwing glass bottles on to the pitch. How low can some folks go? That is how this recreation will likely be remembered now."
Missiles have been later thrown within the path of Jota as he ready to take a nook.