It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
(visit the link for the full news article)
"We don't know what it was," said Federal Aviation Administration spokesman Roland Herwig.
The Williamson County Sheriff's Office used a helicopter to search after callers said they thought they saw a plane crashing, a spokesman said.
"We don't doubt what people saw" but authorities found nothing, said spokesman John Foster.