The first was a flare being thrown into the visiting enclosure as the home side took the lead, this resulted in skirmishes between both sets of supporters, with stewards struggling to regain control. Half a dozen supporters were then ejected from the ground.
After the game, fighting broke out as visiting supporters tried to make their way back to the coaches, which resulted in police breaking up rival supporters.
Recent weeks has seen the Stags involved in unsavoury incidents of the field of play, most notably the trouble as Oxford were beaten 1-0 at Field Mill, when visiting supporters invaded the pitch and tried to storm the home end, with fighting breaking out after the game as well.