Kingston was rushed to Jackson Memorial hospital late on Sunday in Miami after the jet ski he was riding with a female friend collided with a bridge.
The singer has now been moved from the hospital's trauma unit to intensive care, where he is said to be in a stable condition.
"Sean Kingston is now stabilized and has moved from the trauma unit to ICU," the singer's publicist said. "Sean's family thanks everyone for their prayers and support during this time."
Jorge Pino, spokesman for the Florida Fish and Wildlife Commission, the lead investigative agency of the accident, explained what happened during Kingston's accident.
He told People: "Sean was heading west from the MacArthur Causeway and Miami Beach Islands when his personal watercraft collided with the bridge, and he and his female passenger ended up in the water.
"A good Samaritan tended to the two of them until Miami Beach Fire Rescue arrived and saw there were injuries."
The singer first rose to fame back in 2007 with the song 'Beautiful Girls' and has since gone on to have a successful music career, recently collaborating with Canadian popstar Justin Bieber.
"My love & prayers are with Sean Kingston & his family," rapper Nicki Minaj tweeted earlier today.
"Sean we are praying for you baby," Rihanna also tweeted, in support of the singer.
Watch Sean Kingston and Justin Bieber's duet 'Eenie Meenie' below: