Emergency crews got a call around 5:30 from the Dakota Garden Apartments near Dakota and Ninth in Central Fresno.
Authorities say a woman had been swimming with her boyfriend when she suddenly went under. The boyfriend wasn't able to pull her out of the water and started knocking on doors for help. A neighbor was able to pull the woman out and start CPR.
The woman was rushed to the hospital by ambulance. No word on her condition at this hour.