Julian Sands: A timeline of the actor's disappearance

British actor Julian Sands, known for his work in shows like "24" and movies like "A Room with a View" and "The Killing Fields," has been found dead after going missing in the San Gabriel mountains in Southern California in January, investigators announced Tuesday.

Below is a timeline of the search for Sands.

Sands is reported missing at 7:30pm on January 13 after he failed to return from a hike in the Mt. Baldy area, Gloria Huerta, a spokesperson with the department, tells CNN.

Investigators traced pings from his cell phone to Mt. Baldy, located in the San Gabriel Mountains in San Bernardino County.

Search and rescue crews looking for Sands face severe weather and an avalanche threat, hindering search efforts, authorities say.

Officials continue to use drones to search for Sands, but are limited with other resources due to the weather on Mt. Baldy.

As the search for Sands enters 11 days, the San Bernardino County Sheriff shares a statement from his family.

"Our heartfelt thanks to the compassionate members of the San Bernardino County Sheriff's Department who are coordinating the search for our beloved Julian, not least the heroic search teams listed below who are braving difficult conditions on the ground and in the air to bring Julian home," the statement reads.

His family said they were "deeply touched" by the support they had received in the days since his disappearance.

Nick Sands, the older brother of Julian Sands, tells a UK publication he knows "in my heart that he has gone" as California authorities continue to search for the actor.

"He has not yet been declared missing, presumed dead, but I know in my heart that he has gone," Nick Sands said. "However sibling rivalry being what it is, it would be just like him to walk out of there and prove me wrong."

Officials announce "continued ongoing search efforts in the Mount Baldy wilderness for missing hiker Julian Sands. Unfortunately, Mr. Sands was not located."

Over 80 search and rescue volunteers, deputies and staff participate in the search efforts, supported by two helicopters and drone crews as volunteers search in "remote areas across Mount Baldy," according to officials.

The San Bernardino County Sheriff's Department shares videos of the helicopters and air support participating in the search on their Twitter page.

Officials say that "despite the recent warmer weather, portions of the mountain remain inaccessible due to extreme alpine conditions," and that multiple search areas include steep terrain covered in "10 plus feet of ice and snow."

Human remains are discovered near the area where investigators have been searching for Sands, according to authorities.

"Civilian hikers contacted the Fontana Sheriff's Station after they discovered human remains in the Mt. Baldy wilderness," the San Bernardino County Sheriff's Department said in a news release. Investigators say positive identification of the remains should be completed next week.

Investigators identify human remains discovered in the Mt. Baldy area as Sands, according to the San Bernardino County Sheriff's Department.

"The manner of death is still under investigation, pending further test results," authorities said. "We would like to extend our gratitude to all the volunteers that worked tirelessly to locate Mr. Sands."

CNN's Alli Rosenbloom, Andy Rose and Toyin Owoseje contributed to this story.