News 4 States:

"There have been two different sightings on two different days this week. It was captured on video by a man shot Sunday night near the Castroville Road on the West Side. It shows orbs of light hovering in the sky for nearly thirty minutes. A day later another woman spotted colorful lights over the Leon Valley area. Both believe they witnessed UFO's. "It was scary," said Irene Trujillo. "But it was awesome too at the same time. Because you're like seeing something; not knowing if you're going to get zapped." A representative for Joint Base San Antonio says it wasn't any of their aircraft."

Many people will jump to the false conclusion these red orbs are Chinese lanterns. I live in Taiwan and see them a lot. Lanterns only burn for 2-3 minutes. A very short time. Here in Taiwan we have a Lantern Festival and I have lit them and let them fly off. No lantern could glow longer than 3-5 minutes. No lantern could FLY and GLOW for 30 freaking minutes as these UFOs did. So lanterns are ruled out.

Location of sighting: San Antonio, Texas, USA
Source: http://www.news4sanantonio.com/news/features/top-stories/stories/mysterious-bright-lights-spotted-sky-5533.shtml