Federal agents raided homes in Los Angeles and the Miami area on Monday that are connected to the hip-hop mogul Sean Combs, a person with knowledge of the case said.

Homeland Security Investigations carried out the raids but did not provide details about the case, including whether Mr. Combs was a target or which criminal charges were being investigated. Mr. Combs, who is also known as Puff Daddy or Diddy, has been accused of sexual assault and sex trafficking in multiple civil lawsuits over the last several months.

A spokesperson for Mr. Combs did not respond to a request for comment.

The criminal inquiry was being conducted by federal prosecutors in the Southern District of New York and federal agents with Homeland Security, a law-enforcement official said. Nicholas Biase, a spokesman for the Southern District, declined to comment.

In a statement, Homeland Security said that agents from New York had “executed law enforcement actions as part of an ongoing investigation, with assistance from HSI Los Angeles, HSI Miami and our local law enforcement partners.”

Video from Fox 11 (KTTV), a local television station in Los Angeles, showed armed officers entering a home in the Holmby Hills area of the city, which a law-enforcement official said was connected to Mr. Combs. Public records in California also indicate that the home is owned by a company led by Mr. Combs.