HONOLULU (KHON2) — The Honolulu Fire Department continued its search for a 23-year-old man who had been missing since Friday, May 6, near the Makapuu Lighthouse Trail.

Firefighters resumed their search for Chase Ingalls at around 4:20 a.m. on Monday, May 9. HFD’s Air 2 helicopter assisted at around 7:41 a.m.

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Honolulu police started their search on Sunday, May 8, around 6:08 p.m. HPD added that his backpack was found at the top of the trail on May 7, and his car was located in the parking lot.

HFD said it started an ocean search with rescue personnel launching their boat, along with Coast Guard and Ocean Safety officials assisting with the search.

His mother said it is a trail he often visits.

The search for Ingalls is focused within the Makapuu area.

His mother, Pearl Ingalls said his laptop was inside his backpack, along with an empty water bottle, his wallet, house and car keys. She said his cellphone has not been found.

She last spoke with him on Friday. She had flown to Oklahoma to attend Ingalls’ twin brother’s college graduation.

“We spoke about, you know, having him get livestream from the ceremony on Saturday, and so I know he was excited about that,” Ingalls said. “He was getting all of his laptop and everything ready, so it wasn’t uncommon for him to do a hike before all of the events that were going to happen.”

Pearl Ingalls said he stopped answer her calls on Saturday, the day of the graduation.

Ingalls said, “We are close, so he was really excited for the brother.”

She said a receipt from Target dated Friday late evening was also inside the backpack. She thinks Ingalls went for a hike early Saturday morning.

Honolulu Fire Department Battalion Chief Brett Mau said, “The general public tends to want to lend a hand when these situations come about, we always recommend not to put themselves in a dangerous situation only accomplish things that they are familiar with doing.”

Battalion Chief Mau said Monday’s windy conditions added a challenge for the helicopter. He said these types of search and rescue operations usually go on for three days.

Pearl Ingalls hopes to hear good news about her son much sooner.

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Ingalls said, “I ask for everybody to continue praying for Chase that we find him and if anybody knows anything from the day he was hiking.”