One man has been killed and another seriously wounded in a shooting on a college campus in California.
"Campus is clear... investigation is underway," Sacramento police chief Sam Somers said in a tweet, adding that the lone suspect in the case remains at large.
The shooting at Sacramento City College occurred just before 4pm (local time).
The campus went into lockdown following the attack, which authorities said occurred at carpark on campus.
Police said a male suspect was seen fleeing on foot.
Students said the violence - and the ensuing police pursuit of the shooter - rattled the campus.
"We saw the cop cars just zoom through," 18-year-old student Kimberly Jenkins told the Sacramento Bee newspaper.
Jackie Flores, 50, who lives across the street from the campus, told the paper he heard four or five gunshots.
Lieutenant Governor Gavin Newsom said the situation is still "unfolding".
"I'm heartbroken about the shooting at Sacramento City College. I'm sick and tired of this," Newsom said on Facebook, in an apparent reference to a rash of shootings across the United States.
In the past week two TV reporters have been shot dead live on-air, a university student in Georgia shot and killed, and a police officer in Texas shot from behind, in addition to the many less-publicised shootings in US cities that occur every day.
Thirty-one Americans are shot and killed each day, according to The Brady Campaign to Prevent Gun Violence.