A 68-year-old bicyclist has been rushed to the hospital after being hit by a truck on Padre Island.Police say it happened Friday at 7:57am on the 13700 block of Whitecap Boulevard.Officers arrived on scene and found the man had been struck by a pickup. Medics have taken him to a local hospital with life-threatening injuries. Preliminary reports that the bicyclist made an unsafe lane change and caused the accident. The driver of the truck was not injured.Meanwhile, officers have shut down a part of Whitecap Boulevard while they investigate the crash.This is a developing story. Visit kristv.com throughout the day for updates.