Five Celtic fans have been arrested after seats were destroyed and smoke bombs, fireworks and flares set off during the club’s game against Motherwell.
The damage was caused at Fir Park during the match on Friday, with seats in the south stand pulled out.
Officers said 18 smoke bombs, three fireworks and one flare were set off.
There were also disturbances and vandalism in Motherwell both before and after the game.
Police Scotland have since arrested five people in connection with the disturbances and are trawling through CCTV as they try and indentify other people.
In response to the disorder, Celtic have temporarily banned 128 fans and have announced they are to break up the Green Brigade section at Parkhead.
The match saw Celtic defeat Motherwell 5-0.