Mark Ruffalo’s brother is reportedly struggling to survive in a Los Angeles area hospital after being shot to the head in Beverly Hills. The actor’s brother, 39-year-old Scott Ruffalo, was found early Monday morning, December 1, with a gun shot wound to his head, the actor’s publicist Jessica Kolstad confirmed.

Police investigators didn’t give any details about the shooting that took place at the victim’s house in Beverly Hills and only said there was "suspicious activity" at the location. Scott Ruffalo, a hairstylist, was found in critical condition in his apartment located in a condominium tower called the Dorchester.

"If there was a shooting, our detectives would investigate whether it was homicical, accidental or suicidal," said Beverly Hills police spokesman Lt. Tony Lee. He added that the events leading to the incident remained unclear

"We haven't pinpointed anything yet."

Mark Ruffalo, 41, an actor best known for his roles in "Zodiac," "Eternal Sunshine Of The Spotless Mind," and "You Can Count on Me," did not comment on the incident that involved his brother, who is married to a fellow hairdresser, Luzelena Ruffalo. Scott Ruffalo has worked in salons in Santa Monica and Beverly Hills and has held a California state cosmetology license since 1991.

Investigation into the shooting is undergoing.