Woman dies from gunshot wound in Antioch

A 46-year-old woman was found dead from a gunshot wound in Antioch on Saturday, in circumstances that have yet to be explained, police said.

The victim, whose name was not immediately released, was found at a home on the 1300 block of D Street about 12:30 p.m. She had been shot in the chest and died at the scene, police said.

A man called 911, saying a gun was dropped and went off, striking the woman, his friend, in the stomach, according to Antioch police dispatch recordings. Police did not confirm his account, saying only that they were investigating the incident as a “suspicious death.”

Other occupants of the home cooperated with police and were interviewed, authorities said.

Henry K. Lee is a San Francisco Chronicle staff writer. E-mail: hlee@sfchronicle.com Twitter: @henryklee