San Bruno Police Chief Ed Barberini told reporters the deceased woman had died of an apparent self-inflicted gunshot wound.
The shooter, a woman, was "down" at the scene, NBC News reported.
A spokesman for San Francisco General Hospital said it received three patients.
A source told ABC7 News' Vic Lee there was one, female shooter and that officials are clearing rooms at the campus.
The company that owns the world's biggest online video website said Tuesday on Twitter that it's advising employees and others to stay away from the area and that it's set up a help line for workers. A fourth victim was also transported to an area hospital.
Earlier, several YouTube employees posted on social media that they heard gunshots and took cover inside before fleeing the building.
Reports of an active shooter started coming in just before 1 p.m. local time.
Shots were heard from inside the offices as well as the surrounding area, a San Bruno city manager told Buzzfeed News.
The San Bruno Police Department urged people to stay away from the building, located at Cherry Ave and Bay Hill Drive.
Police on the scene said they have evacuated hundreds of people from the YouTube building.
Parent company Google posted a statement noting that they are working with the authorities. "The fire alarm went off so we started to evacuate and then people (started) running saying there was a shooter".
The White House says the president has been briefed and is monitoring the situation.
Sen. Dianne Feinstein, who represents the district where Tuesday's shooting occurred, expressed disbelief at the latest development.
The San Francisco Field Division of the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) said it was responding to the scene.
Eastern. At 4:28 p.m. EST, the account, added, "We are responding to an active shooter".
Prosecutors have alleged that Manafort and Gates used an offshore account to secretly pay $4 million for the report . He had asked the judge for leniency hoping to avoid jail time because his wife is pregnant with their first child.
The health effects which are linked to the usage of synthetic cannabinoids are harmful and unpredictable as well. Synthetic marijuana, also called K2 or spice, isn't a substitute for marijuana, Live Science reported in 2016 .
Nixon, who has no prior experience running for elected office, is running against a two-term incumbent Governor. Kristin Davis , Sarah Jessica Parker , Cynthia Nixon , and Kim Cattrall in " Sex and the City ", 1998.
Higher-spec RAV4s see that screen grow to 8.0 inches, while a separate TFT display is available in the instrument cluster. The latter will center the auto in its lane by guiding itself with the painted lines or by following the vehicle ahead.
As for New Mutants , it too has moved , from February 2019 to August (after originally being scheduled for April of this year). And now that Valentine's Day is taken, that pushes the medieval epic "The Kid Who Would Be King " back two weeks to March 1.
At least two Senate bills dealing with Dreamers, which included Democratic support, have failed to get 60 votes. He threatened to "stop" NAFTA unless Mexican authorities do more to secure the border with the United States.
But a game Parker kept going and the boos at the end of the contest appeared to be aimed at the referee rather than the boxers. However, one man who was not buying into any of that was Tony Bellew, who was on the Sky Sports Box Office panel in Cardiff.
However, Facebook said the move was taken in order to comply with the incoming GDPR guidelines, due to come into force in May. The changes won't affect Facebook's privacy policies or the types of data it gathers about its users.
In case of breach of code, the agreement required an intimation to be sent to the high commission before lodging a formal protest. It turned ugly when the children of Pakistani diplomats while on way to their schools were stopped and harassed.
The policeman claimed to be Salamoni after that goes for Sterling, tackling him as the video camera video obscures with movement. Baton Rouge , Louisiana officers in the videotaped 2016 killing of a black man named Alton Sterling have been spared any charges.
The original charges filed against Gates and Manafort in October alleged conspiracy to launder money and making false statements. But the Times report claims that Trump's lawyer did in fact talk to Manafort's lawyer about a pardon.
Stroman allowed four runs, all in the third inning, and three hits, also all in the third, over five innings. The New York Yankees' home opener against the Tampa Bay Rays on Monday has been postponed because of snow.
Radouane Lakdim , 25, began his killing spree when he stole a auto in the medieval town of Carcassonne, shooting the driver dead. Macron made reference to Knoll's death in a national tribute to a gendarme killed last week in an Islamist attack.
Security guards, supposed to help with any emergency evacuation, were reportedly among the first to flee when the fire broke out. Wednesday was declared a day of national mourning and vigils were held across Russia , Tass news agency reported.
NASA's Skylab space station had a mass of more than 80 tons (around 75 metric tons) when it came down over Australia in 1979. The space lab flew down from orbit towards the South Pacific at around 8:16 pm Eastern Time.
A provision pushed by McConnell allowed state agriculture departments to designate hemp research and development projects. The work of Commissioner Quarles here in Kentucky has become a nationwide example for the right way to cultivate hemp.
But Putin refused to discuss the issue saying "these are exclusively commercial questions" rather than political ones. But Erdogan indicated that Turkey was in no mood to listen to criticism from the West over the purchase.
It was 2003, and Wie played grown-up golf between giggling discourses on Oreo cookies and Krispy Kreme doughnuts. But the day belonged to Thompson, who posted her lowest opening-round score in this tournament.
Ruben Portugal was booked in the Vermilion County jail on preliminary charges of armed robbery and attempted vehicle hijacking. Police have arrested one of the two suspects wanted after liquor and electronics were stolen from the Junction Bar in Oshawa.
After Sessions indicated last month that Horowitz would conduct a review , Trump reacted angrily on Twitter, writing "Why is A.G. Republicans are also likely to be upset with what amounts to the Justice Department investigating itself.
The two-day trip by Chinese State Councilor Yang Jiechi follows talks earlier this week between Kim Jong Un and Xi Jinping. About 70 South Korean officials and technicians flew to Pyongyang on Thursday to set up the performance equipment.
Anyone with information on Riess' whereabouts is encouraged to call the Dodge County Sheriff's Office at 507-635-6200. Parents, too, find themselves not knowing all the ways they can be involved in their child's success, she added.
These markets join Apple TV app users in the US, Australia, Canada, France, Germany, Norway, Sweden and the UK. Apple is also updating Apple Health, Music, News apps with iOS 11.3 and introducing ARKit 1.5 with iOS 11 .3.
They also blew up many girls' schools and imposed their strict version of Islamic law until they were finally driven out. She was just 15 when she was targeted by the Taliban for her outspoken campaigning over girls' rights to an education.
Barr said she thought it was important to show how the Conner family deals with the same issues many American families are facing. For the reboot, Roseanne will be at odds with her sister Jackie, played by Laurie Metcalf , over President Donald Trump .
The administration said the plan is to reduce the trade deficit by roughly a third, a decrease of $100 billion this year. Reports that Beijing and Washington are negotiating greater access to Chinese markets sent USA stock prices soaring.