SAN DIEGO (KGTV) - Residents all over San Diego County Wednesday night reported seeing mysterious lights hovering in the sky.

10News received several calls from residents throughout the county who reported seeing the lights in the western sky between 8 p.m. and 8:30 p.m.

Reports came in from Blossom Valley, La Jolla, Del Mar, Chula Vista and El Cajon.

10News reached out to authorities to find out what may be the source of the lights, and an official with Naval Air Station North Island in Coronado confirmed that the lights were from flares being used during training exercises. No additional details were given.

PHOTOS: Mysterious lights hover over San Diego

Photos sent in by viewers appear to show several yellow objects floating together in the sky.

One viewer, Dani Grady, said the lights faded in, then hovered for about 10 minutes mostly in a linear formation and sometimes in a Z formation.

Roughly 20 minutes after the objects disappeared into the night, Grady says she heard what sounded like helicopters flying over the ocean into the darkness with only a small, red light.

RELATED: Video shows UFO encounter off San Diego’s coast

The incident mimics another high-profile sight in our skies that took place last December, when San Diegans were caught off guard by a rocket launch. SpaceX had launched a Falcon 9 rocket from Vandenburg Air Base just north, sending locals into a brief panic.