Video of the scene at the DR jail where Tekashi was brought to showed chaos ... as you can see, folks started screaming as the cop car pulled up with him being brought inside. Some people were even scrambling to just get a glimpse of him.
Tekashi's reportedly been accused of beating up music producers in the country with a handful of other men ... after allegedly getting into it over his new girlfriend, Yailin.
Reports say Yailin was in the studio when 6ix9ine showed up with his crew -- and the rapper was allegedly jealous of the producers spending time with his girl.
Tekashi reportedly tried flying out of the country after the incident, but the charter company followed protocol and checked with immigration for any outstanding warrants -- resulting in the rapper bailing on the plane idea.