UPDATE:  Officials are not releasing much information about a small plane that crashed at the Jack Simplot Burley Airport early Sunday afternoon.  Reports indicate that four people died in the crash.  No more details are being released at this time.  The NTSB is investigating.   The crash occurred around two o'clock Sunday afternoon.  Stay tuned for more information on AM Idaho with Kelly Klaas, 5:30 to 8 a.m. on News Radio 1310 KLIX.  Also, any developments on this story will be posted here.