I was up there climbing. There was a group of 5-6 kayakers, one of them was swimming and got out betweent tunnels 5 & 6. She seemed fine and started walking toward the takeout (she refused an offer of a ride). Her boat was last seen by me entering Blackrock Rapid. Not sure how far it went after that.
Then, a commercial trip came by and pulled a swimmer into their boat. Swimmer looked shaken but ok. Shortly after, an overturned raft came down along with a couple other commercial boats. I didn't see any more swimmers and the guides didn't seem panicky, but Clear Creek rescue folks started mobilizing and sending rescuers upstream around tunnel 6. My guess is some swimmers ended up on the wrong side of the river, but that is pure speculation. Judging by the demeanor of the guides, i would say the swimmers were fine.