The south tower -LRB- NUMBER@1 WTC -RRB- fell at approximately NUMBER@2 a.m. , after burning for NUMBER@3 minutes in a fire caused by the impact of ORGANIZATION@1 Flight NUMBER@4 .

ORGANIZATION@1 Flight NUMBER@4 , which crashed into the south tower of the World Trade Center at 9:02:59 a.m. local time -LRB- 13:02:59 UTC -RRB- . The south tower -LRB- NUMBER@1 WTC -RRB- burned for NUMBER@3 minutes before it fell and was destroyed .
