UPDATE 12:15 P.M.: St. Petersburg Police identify the victims in this morning's plane crash in Vinoy Park as Grant Jordon, 67, the plane's pilot; Aloysious Ryan, 52; Eamonn Harnell, 48; and a 17 year-old female.
Jordon and Ryan are both listed in serious, but stable condition at Bayfront Hospital. Harnell and the female passenger had minor injuries. All four are believed to be from Ireland.
Federal Aviation Administration investigators are already on scene.