At least three people aboard a jet headed for Montgomery-Gibbs Executive Airport in San Diego were killed when the aircraft crashed into a neighborhood early Thursday.

The Federal Aviation Administration said six people were on the Cessna 550 when it crashed amid dense fog around 3:45 a.m. While authorities have not named anyone who died in the crash, a spokesperson for Sound Talent Group, a San Diego-based music agency, confirmed to The Times that the company lost three employees in the crash.

Among them was Dave Shapiro, the company’s co-founder. The other employees were not named.

“We are devastated by the loss of our co-founder, colleagues and friends,” read a company statement. “Our hearts go out to their families and to everyone impacted by today’s tragedy. Thank you so much for respecting their privacy at this time.”