Toddler dies a day after fall from 3rd-floor Foster City window

File photo of generic hospital emergency room. Close up of sign for emergency department in hospital File photo of generic hospital emergency room. Close up of sign for emergency department in hospital Photo: ERproductions Ltd / Getty Image Photo: ERproductions Ltd / Getty Image Image 1 of / 3 Caption Close Toddler dies a day after fall from 3rd-floor Foster City window 1 / 3 Back to Gallery

A 2-year-old boy who fell from a third-story window in Foster City on Thursday has died, officials said Friday.

The toddler was looking through an open window at his family’s apartment complex Thursday morning and tumbled through the screen, said Capt.Tracy Avelar, a Foster City police spokeswoman. He was walking through a hallway with his mother moments before the fall.

“It is with heavy hearts that we confirm the passing of yesterday’s fall victim,” the department said in a statement. “Santa Clara County Medical Examiner’s Office confirmed that the young boy succumbed to his injuries last night. Our thoughts and prayers go out to his family and community.”

Firefighters were called to the Water’s Edge Apartments on East Hillsdale Boulevard at 8:19 a.m. for a medical call, said Battalion Chief Chuck Goodwin of the fire department.

Officials learned en route to the scene that the boy had fallen, prompting them to call in another fire unit and a medical helicopter, Goodwin said.

The child was unconscious when firefighters arrived. Police shut down the street and cleared an area for the helicopter to land.

Officials said the child’s mother was on the sidewalk with the boy and in distress.

The toddler was flown by helicopter to Stanford University’s trauma center.

San Francisco Chronicle staff writer Kimberly Veklerov contributed to this report.

Jenna Lyons is a San Francisco Chronicle staff writer. Email: jlyons@sfchronicle.com Twitter: @JennaJourno