Officials at the Bumble Bee Foods factory announced Saturday that they opened an investigation after a worker was found dead in an oven at a plant in Santa Fe Springs, California.

According to KLTA, it's unclear how 6-year employee Jose Malena, 62, ended up inside the oven, but authorities say the incident happened around 7 a.m. on Thursday.

This is a horrendous tragedy," California Division of Occupational Safety and Health spokesperson Erika Monterroza told the Whittier Daily News.

"The entire Bumble Bee Foods family is saddened by the tragic loss of our colleague, and our thoughts and prayers are with the Melena family," Bumble Bee Foods spokesman Pat Menke said in a statement given to KLTA.

[Oven via Shutterstock]