Upside-down balloon in Vegas sky grabs attention

Posted at 5:28 AM, Sep 26, 2015
and last updated 2015-09-26 08:28:54-04
Hot air balloons over the Las Vegas valley are not an unusual sight. But, quite a few people were surprised when they saw a balloon early Friday morning that appeared to be flying upside down. 
The upside-down balloon and its companions took flight around 7:30 a.m. Many people began posting photos of the unusual balloon on social media. Some even called 911 because they were worried.
For a while, no one seemed to know where the unusual balloon came from.
It turns out that the balloon belongs to the German-based Festo Corp., who is in town for the PACK Expo. The upside-down balloon is actually one half of a pair of balloons. The other balloon is a traditional hot air balloon.