Kellen Winslow Jr. was arrested in San Diego -- again ... this according to the San Diego County District Attorney.
Details surrounding the arrest are unclear. We don't know if this has anything to do with his arrest last week when he was accused of breaking into a mobile home park in the San Diego area. For that incident, was arrested on suspicion of felony burglary.
But moments ago, the San Diego D.A. told TMZ Sports ... "A warrant was issued this morning for Kellen Winslow II’s arrest and he was taken into custody by San Diego Sheriff’s Deputies Thursday afternoon.