Authorities are investigating a double murder-suicide involving two former San Francisco Police Department officers, according to sources.

At the scene on Sunday, family members could be heard crying out after learning that three people were found dead in a home in the community of Strawberry, which is unincorporated Mill Valley, in California.

Deputies responded to reports of gunshots being fired in the area just after 5 p.m. on Sunday, and a call from someone who was in that home when the shots were fired, according to our sister station KGO.