Thirteen pounds of marijuana and more than $30,000 were seized as part of a Columbia police investigation into a home invasion robbery that happened Monday evening on the city�s south side.

Officers were sent to a residence in the 3100 block of Rock Quarry Road at about 6:10 p.m. Monday for a report of a home invasion. A man had knocked on the door and asked a 25-year-old man who lived there for one of his roommates, whom the man requested by name, according to a news release. The resident took the man to his roommate�s room when two other people came in and pulled out a gun, the release said. They forced their way into the roommate�s room and stole an unspecified amount of cash and marijuana, the release said.

It was unclear how many of the assailants had a gun. Police got a search warrant for the home, which was served at 11:17 p.m. Monday, and investigators found about 13 pounds of marijuana and more than $30,000 in another room at the home. The person who lives in the room where the marijuana and money were found was not home at the time, Officer Latisha Stroer said.

No arrests have been made. The police only released that the three male suspects were responsible and provided no further description. The investigation is ongoing.

This article was first published online Tuesday, December 13, 2016 at 10:52 a.m.