Polo G and His Brother Arrested On Kidnapping, Robbery, Assault Charg

Polo G and his brother Trench Baby's problems didn't end after a police raid at their home -- in fact, they only got worse -- TMZ Hip Hop has learned the two were arrested for several felonies AFTER they were released from the raid.

Burbank Police tell us Polo and TB had outstanding warrants for kidnapping, assault with a deadly weapon, and robbery, stemming from a report filed last April.

Officers waited for the pair to be released from LAPD custody, and then nabbed them for the warrant around 10:30 PM on Wednesday.

We're told Polo was released from Burbank Jail around 4:30 AM on Thursday after posting a $100K bond.

As for the raid, our sources tell us the "Pop Out" rapper was released on his own recognizance in that case. Trench Baby posted $100k for the Burbank case and another $100k for bail in the LAPD case.