ANTIOCH -- A pregnant woman was shot in the back during an Easter celebration, but both she and her unborn child survived, police said.

The shooting occurred around 9:45 p.m. Easter Sunday, on Sycamore Drive near Spanos Street. The woman was with about 20 family members at an Easter gathering when an unidentified shooter fired at least six shots in the family's direction, police said.

The woman was struck by bullet fragments and received a minor cut. Her fetus was not in danger, police said. It was unclear whether she was the intended target.

When officers arrived, most of the family was "extremely hostile" toward police, so additional officers from Brentwood and Pittsburg were called in as backup, according to a written statement from Antioch police.

Though the incident occurred on March 27, it was not reported to the public until Monday, when information about the shooting was included in the city manager's weekly report.

Police did not immediately return inquiries as to whether any arrests had been made.

Contact Nate Gartrell at 925-779-7174 or follow him at Twitter.com/NateGartrell.