A 55-year-old man was arrested Sunday afternoon on suspicion of attempted murder after he allegedly stabbed two relatives with a knife in Saugus, causing life-threatening injuries, according to authorities.

Gregory Brunson, a transient, was booked into the Santa Clarita Valley Sheriff’s Station jail after deputies located him in the hills behind a Saugus neighborhood.

Deputies had been called around 11:40 p.m. Saturday to a home on the 28000 block of Oaklar Drive in Saugus after receiving reports of “a person bleeding.”

Upon arrival, deputies found two victims, a man and woman in their late 70s, suffering from stab wounds. Their injuries were considered life-threatening so the victims were taken to a local hospital, and both are expected to survive.

The suspect was determined to be a relative of the victim(s), and deputies combed the residence and surrounding areas to locate the suspect, but to no avail.

A Los Angeles Sheriff’s Department Aero Bureau helicopter also assisted in the search.

After an extensive search that extended into Sunday, deputies located the suspect around 1 p.m., in hills behind a Bouquet Canyon/ Plum Canyon neighborhood and took him into custody without further incident.

Citizens who have any information about the alleged attack are asked to call Santa Clarita Valley Sheriff’s Station at 661-255-1121 ext. 5146. Anonymous tips may be submitted through LA CrimeStoppers at 1-800-222-TIPS (8477) or through www.lacrimestoppers.org.