Small plane hits building in Austin, TX

AUSTIN (KXAN) - (KXAN) - A small plane crashed into a business tower that houses some federal offices in Austin on Thursday morning, engulfing the entire front half of the seven-story building in flames.

The plane, which according to reports was either a Cherokee Piper or a Cirrus, hit the Echelon Building on Mopac and U.S. 183 around 10 a.m. Two were injured and one person has yet to be accounted for in the search for victims.

""It shot right across the road," said James Cullen, a witness. "It sure was hauling. It was a really speed dive."

Federal officials are reporting to CNN that the plane's pilot set his own house on fire in Northwest Austin, stole the airplane, and then crashed it into the building.

The fire, which happened around 9:15 a.m. in the Scofield Farms neighborhood, destroyed the $236k home that belonged to Joseph Stack, a local pilot. Stack has not been located. Local officials have not confirmed to KXAN that there's a connection. Joseph A. Stack is a registered pilot of a Piper PA 28-236.

A 12-year-old girl and a woman were rescued from the burning house. The girl is presumed to be to Stack's stepdaughter. There has been no conformation that Stack is the pilot of the plane that crashed into the building, or that he was connected to the fire - other than reports by CNN from a federal official.

According to FAA reports, the plane departed Georgetown airport north of Austin about 9:40 a.m. and was a Cirrus SR 22. The pilot evidently did not file a flight plan, according to reports. No flight plan is required because it is a VFR (visual flight rules) day, meaning clear weather.

There was still no information on the number of people in the plane, or on a tail number.

Two people have been rushed to a nearby hospital with unspecified injuries. There still has been no official word on who the pilot is, or if he or she has been located in the wreckage.

Witnesses at the scene say that a single engine plane that appeared to be a Cherokee 140 did not appear to be having any trouble, but hit the building at an angle. No smoke or any sign of trouble was visible.

Said one witness, a former pilot: "It was a really speedy dive. It (hit) between the first and second floors in Echelon I. A gigantic fireball came out about 50 feet wide, the windows blew out. It was a whoosh, a roar and a boom."

The IRS and the CIA all have offices in that office complex, witnesses say. The Internal Revenue Service has 199 employees in the building and they are currently being accounted for, IRS officials said.

Homeland Security Secretary Janet Napolitano is "aware" of the crash, federal officials said. Upon hearing of the crash, the Pentagon sent two F-16s to Texas to investigate.

"At this time, we have no reason to believe there is a nexus to criminal or terrorist activity. We are in the process of coordinating with the state officials and other federal partners to gather more information, and at this time we will defer additional questions to local officials and the FAA," said Matt Chandler of the Department of Homeland Security.

The collision shook the entire building, and the entire front of the structure is gone and on fire, according to emails being reported from inside the building. Several witnesses are reporting they first thought it was a bomb.

Emergency crews are doing a roll call on the scene to account for people in the building.

There are four separate fires burning in the building. Some 50 to 100 people are outside watching, and the entire building from the second to fourth floor is on fire.

FBI officials officed in a next-door building began immediately interviewing witnesses.

"It hit the building next door. All FBI personnel are safe. We are helping local PD and Fire determine what happened. Nothing to indicate we were targeted," said Erik Vasys with FBI in San Antonio.