During halftime, Dresden fans unveiled a banner which led to police heading into the visiting supporters, per Welt.
Liga showdown with Dynamo Dresden was halted for almost half an hour as riot police struggled to gain control.
Various videos circulating on social media showed fireworks being fired at riot police from the away section.
Nils Froling gave Rostock an early lead in the contest, with Dresden arriving chasing an automatic promotion spot.
Police stood firm as various pyrotechnics were sent their way.
