Rihanna tweets support to Sean Kingston after jet-ski crash in Miami‎

The Beautiful Girls singer is in a 'critical condition' in hospital after his watercraft hit Palm Island Bridge.

The 21-year-old was on the jet ski with a female passenger and both were injured after the crash.

A boater rescued the pair from the water, and Miami Fire Rescue crews rushed them to hospital.

Kingston is being treated in the trauma ward of Jackson Memorial Hospital in Miami.Rihanna posted a message to the Jamaican/American singer on the micro-blogging site Twitter: 'Sean we praying for u baby.'