PINOLE -- Police have officially identified the man arrested in a double homicide early Friday morning as Jeffrey Flores.

In a news release, police officials said Flores, 25, has been booked on two counts of homicide and is being held at the Martinez Detention Facility on $2 million bail.

They did not release the identities of the people who were killed, pending notification of next of kin, but people familiar with the family said Flores lived at the home with his father and grandmother.

Flores called 911 about 2:30 a.m. Friday to report that there might be injured people in the two-story home in the 1100 block of Tara Hills Drive. When police arrived, he escorted them inside, where they discovered a man and a woman dead in different bedrooms.

Police did not say how the victims were killed or how they were related to Flores, who was taken into custody at the scene, Pinole police Cmdr. Neil Gang said.

Hayward resident Cynthia Ortega said the victims in the homicide were her aunt, Nona Flores, and her cousin, Tony Flores. Ortega said Jeffrey Flores also lived in the home.

The last slaying in Pinole occurred in September 2011, when Jeffrey McCoy, a 42-year-old San Pablo resident, was killed by his childhood friend Brian Fitch. McCoy died on Fern Avenue in Pinole after he was shot a few blocks away on Buena Vista Drive. In July, Fitch was sentenced to 52 years in prison.

Anyone with information about the incident may contact Pinole police at 510-724-8950.

Staff writers Katie Nelson, Erin Ivie and Rick Hurd contributed to this report.