Police said an officer was patrolling near the intersection of Kavanaugh Drive and Gloria Way at about 10:30 p.m. when he heard shots being fired.
The officer continued onto the 2500 block of Gloria Way, where he spotted a male suspect firing a gun into the air in front of a home at 2590 Gloria Way, according to police.
When the officer identified himself as a police officer and stopped to confront the suspect, the suspect pointed the gun toward the officer and shot at him about five times before running to the home at 2590 Gloria Way, police said.
The officer avoided being struck by gunfire but requested assistance from police personnel. While waiting for backup, the officer located 48-year-old Corona Lynn Crowell of East Palo Alto suffering from at least one gunshot wound in the driveway of 2590 Gloria Way, according to police.
Crowell was transported to a local hospital, where she is believed to be in stable condition.
Law enforcement personnel from various agencies arrived and established a perimeter around 2590 Gloria Way.
A preliminary investigation of the shooting revealed that a 3-year-old girl and a 4-year-old boy were possibly inside the home but a SWAT unit was unable to make contact with anyone inside. The team entered the house after several failed attempts and found the toddlers. Police said they were unharmed and turned over to detectives.
The suspect is still at large.
Police are asking anyone with information about the incident to contact Detective Tracy Turner at (650) 853-3177, the Police Department at (650) 321-1112 or the tip line at (650) 853-8477.