HOUSTON (AP) - Houston police are now saying that a lone gunman
has barricaded himself in a building at the Johnson Space Center.
He's described as a white male in his 50's or 60's and is said to be armed with a handgun. Police also say they were told by a witness that two shots were fired.
Houston's police chief says no communications have been established with the unidentified suspect.
A SWAT team has secured a perimeter around the building.
(Copyright 2007 by The Associated Press. All Rights Reserved.)