Paul Wall & Baby Bash Arrested in El Paso

9/11/2011 2:00 PM PDT

Rappers Paul Wall and Baby Bash were arrested last night in El Paso, TX for possession of marijuana ... TMZ has learned.

According to jail records, the rappers -- real names Paul Michael Slayton and Ronald Ray Bryant -- posted $300 bond shortly after.

Paul Wall tweeted after being released, posting the above photo and writing, "Fresh out the El Paso County jail wit @BabyBash @BIGGROY in the same tank they held Willie Nelson/Johnny Cash."