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Jonathan Rivera was enjoying his Memorial Day Weekend out on his boat when he happened upon Sean Kingston's jet ski accident in Miami Beach.
Miami-born rapper and singer Sean Kingston has been stabilized and is in the intensive care unit at Ryder Trauma Center after crashing his watercraft, his publicist said Monday.
Kingston, 21, was moved from the trauma unit to the ICU Monday, publicist Joseph Carozza said in a press release.
"Sean's family thanks everyone for their prayers and support during this time," Carozza's statement read.
Kingston and a female passenger were injured when their jet ski struck the bridge connecting Palm Island with the MacArthur Causeway at approximately 6 p.m. Sunday, Florida Fish and Wildlife Conservation Commission spokesman Jorge Pino said.
Pino said both the "Beautiful Girls" singer and his passenger were pulled from the water by a helpful boater. Investigators are still trying to determine exactly what caused the pair's craft to strike the bridge, though Pino said "nothing at this point would indicate that alcohol played a role."
Jonathan Rivera, the man who authorities say helped Kingston, said he saw people in distress and immediately jumped into the water to help. He said he held the singer under the arms, keeping his head out of the water until authorities arrived.
Rivera said the female passenger was complaining of pain in the back of the head.
On Twitter, Bieber posted a message of support for Kingston. "Got my friend Sean Kingston in my prayers tonight," Bieber tweeted early Monday. "A true friend and big bro. Please keep him in your prayers tonight as well."
A number of hip-hop musicians were in Miami Beach over the weekend for Urban Beach Weekend.
In a 2007 interview with The Associated Press, Kingston described his music as a fusion of reggae, pop, rap and R&B.
"It's Sean Kingston genre. I have my own genre," Kingston told The AP at the time. "No disrespect to no artist or dudes out there. I feel like I am my own person. I am doing my own thing."
His music has been unique among hip-hop offerings, as Kingston refused to use profanity.
"To put it in my music, that's not the message I am trying to send out," he said in the 2007 interview. "That's not the type of artist I am trying to be."