MILLBRAE — A man and woman are in the hospital with serious gunshot wounds after what investigators believe was an attempted murder-suicide Tuesday morning, according to the San Mateo County Sheriff’s Office.

Deputies were called about 8:45 a.m. to a home in the 200 block of La Cruz Avenue, where they found the two injured people in their 60s, the Sheriff’s Office said. Both were rushed to the hospital.

Early evidence suggests that the shooting was the product of both murder and suicide attempts, authorities said. It was not immediately clear who initiated the gunfire, which is believed to have been “isolated to this residence” and did not involve any other people.

“This incident doesn’t reflect Millbrae,” Detective Sal Zuno. said “It just reflects a problem that occurred inside a residence. Millbrae overall is a very safe community.”

The shooting occurred on a quiet street lined mostly with older single-story homes. Additional details were not immediately available.

Anyone with information about the case can contact Sheriff’s Detective Victor Bertolozzi at 650-259-2321 or vbertolozzi@smcgov.org, Detective Joe Cang at 259-2417 or jcang@smcgov.org, or leave an anonymous tip at 800-547-2700.

Staff writer Jason Green contributed to this report.