A noise complaint brought San Diego police officers to the scene of a triple stabbing in Mountain View early Friday morning.
San Diego police detectives were still interviewing witnesses hours later after the attack.
"We've been speaking with witnesses ... and we feel comfortable that we will get enough information to figure out who committed these crimes," said San Diego police Lt. Brian Goldberg.
The incident occurred at a birthday party in the Mountain View neighborhood. Officers responded to the intersection of 43rd and Boston streets after a noise complaint around 12:30 a.m. More than 100 people -- the majority of them underage -- were gathered for a house party that had spilled out into an alley off of Boston Street. After they arrived, the police discovered two teenage girls had been stabbed; one in the leg, the other in her side. A third victim, who was stabbed six times, according to police, was later identified when he checked into the Paradise Valley Hospital.
Witnesses told police that four males and a female who were not invited to the party showed up looking for a fight. The five suspects used knives and broken glass bottles to attack several people.
As were most of the party guests, all three victims are juveniles. All are expected to survive.
There is a strong possibility that the suspects -- none of whom are yet in custody -- are connected to a gang, officials said.