COPS ARE ON A MANHUNT FOR AN INTRUDER @ NELLY'S MANSION!

Nelly's St. Louis mansion is at the center of a major police manhunt, after cops received a call about someone breaking into the home early this morning.

We're told 12 officers, a helicopter unit and a K-9 squad have been patrolling the area after a female in the home reported that she saw a young man "fleeing" from the residence.

It's unclear if anything was taken from the home. No word if Nelly was home at the time of the alleged incident
PIC OF HIS HOUSE: