RELATED: CHP: Woman in Petaluma crash that killed daughters is unlicensed driver
The accident happened around 8 a.m. on Wednesday. CHP investigators tell ABC7 News the girls were pulled from the car and CPR was performed on them, but it was too late. Officials earlier reported that the sisters were ages 4 and 7.
Officers say the two girls and their mom were in the car when it lost control and went down an embankment into the water. Northbound Petaluma Boulevard was closed near Gossage Avenue for several hours, but reopened in the early afternoon.
Investigators said the two girls were not in their car seats and by law should have been.
RELATED: CHP: Mom tried to reach 2 girls as truck sank into Russian River
Last week there was a very similar tragedy; two young sisters died when their mother's truck crashed into the Russian River. Four-year-old Hailey and 6-year-old Kaitlyn Markus were in the backseat of their mother's truck when it went off the road and into the river. They were on their way to school in Monte Rio. The investigators were en-route to Hailey and Kaitlyn's funeral when this latest tragic accident happened.
Reporter Wayne Freedman will have the latest on this tragedy tonight at 5 p.m. on ABC7 News. Click here to follow him on Twitter.