VALLEJO, Calif. -- Firefighters Saturday morning are responding to a structure fire in Vallejo's Carquinez Heights neighborhood, a Cal Fire dispatcher said.

Units responded to a reported fire at a house in the 100 block of Jordan Street near Sequoia Avenue at around 2:30 a.m., the dispatcher said.

Firefighters from American Canyon Fire Protection District responded, the dispatcher said.

There was no immediate information regarding occupants of the home, the dispatcher said, whether any were inside when the fire ignited or whether any had been injured.