Saw this mentioned on Ian's site last night of a broadcast on 6923.5 USB. Sounds like the language is in spanish and at one point could clearly make out 'Columbia'. The broadcast sounds like a sports event being relayed, but the sportscast audio itself sounds like pieces or segments with very short stops or pauses in between. The transmission ended abruptly at 02:51z. SIO 323 with a nice peak around 02:34z-02:37z. May just be pescadore/fisherman relaying their favorite team.
Audio(02:35z-02:36z):
https://www.yousendit.com/download/ZUd2TkFwMGs3N0EwTVE9PQ