Whitney Houston, on Feb. 9, 2012
02/12/2012 at 03:20 AM EST
As the pieces are being put together to determine the precise cause and circumstances of Whitney Houston's shocking death
on Saturday, Beverly Hills Police Lieutenant Mark Rosen tells PEOPLE: "At this time, there's no obvious evidence of foul play or cause of death."
Without citing the exact location within Houston's room at the Beverly Hilton Hotel where the body of the 48-year-old was discovered, Rosen said early Saturday evening, "Someone in her entourage found her unresponsive in her room. … Our detectives are still in the room, and her body is still here as well."
Late Saturday afternoon, Rosen had told PEOPLE: "I can confirm that Whitney Houston was pronounced dead at 3:55 p.m. this afternoon at the Beverly Hilton Hotel. We received a call at 3:43 p.m. from hotel security and Beverly Hills Fire and police responded minutes later."
He added, "It's unclear who notified hotel staff, because she has quite an entourage here at the hotel. "An attempt was made to resuscitate, to no avail."
As for there being any evidence of drugs of any kind in Houston's room, Rosen said: "We don't know yet. Her death is under investigation."
A later statement from the Beverly Hills police department explained that the detectives investigation "is a common practice whenever a death occurs which is unattended and unexpected."