Breaking news, shots fired on Miami plane

This is just now breaking, http://www.lasvegassun.com/sunbin/stories/nat-gen/2005/dec/07/120700409.html

MIAMI (AP) - A federal air marshal opened fire on board an American Airlines flight on the ground at Miami International Airport, according to a law enforcement official who spoke only on condition of anonymity.
At least one person was wounded, according to broadcast reports said. The plane had just arrived from Colombia and was headed to Orlando. Television showed police SWAT officers surrounding the plane.
Airport and Miami-Dade County police officials said they had no immediate comment. Airlines officials did not immediately return calls seeking comment.
Martin Gonzalez, spokesman for Colombia's civil aviation agency, said he had no information regarding the incident. "The flight left normally with no problems," he told the Associated Press in Bogota.
He said he did not have a list of passengers who were aboard the plane.
According to American Airlines' Web site, Flight 924 arrived from Medellin at 12:16 p.m. It was supposed to depart for Orlando at 2:18 p.m. The site says the flight status is delayed.