Officers responded to reports of gunfire around 3:45 p.m. outside a home located near a high school in the city.
The boy was found suffering from at least one gunshot wound and he was later pronounced dead at a hospital, according to San Jose police.
“It’s tragic. It’s a 13-year-old. Regardless of what he was doing or what he was involved in, we have a 13-year-old that lost his life,” department spokesman Sgt. Christian Camarillo told FOX 2 of the Bay Area.
On Thursday, authorities searched for clues outside the home, which was still riddled with bullets after the shooting.
A preliminary investigation determined there was an exchange of gunfire between the victim’s group and residents at the home, police said. The boy had just arrived in a vehicle when the shots rang out, they added.
“The exchange of gunfire happened between the people who arrived at the residence, and the people who live on Little Wood Lane,” said Camarillo.
A manhunt was underway for those responsible, but investigators didn’t yet have descriptions of the suspects or a motive for the incident, FOX 2 reported.
An extensive investigation was underway by San Jose homicide detectives, the department said Thursday.
“We are still talking to witnesses and involved parties. We will share arrest information related to this incident as soon as possible,” a police statement said.