The US Coast guard has suspended the search for a missing Florida father of three after they found evidence that he may have gone missing due to an encounter with a “marine predator.”

37-year-old Timothy Obi was reported missing on Saturday around 1:00 p.m. after he went diving in Jacksonville waters.

The US Coast Guard deployed a helicopter and several boats to search for the missing diver.

After three days of searching, a volunteer boat located Obi’s diving gear damaged and about 250 away from his diving location and contacted the US Coast guard.

“This afternoon I have made the determination based on new information to suspend the search for Mr. Timothy Obi,” Capt. Mark Vlaun, Commander of the Coast Guard Sector Jacksonville, said in a statement. “The Coast Guard and our partners extend our deepest condolences to the Obi family, who remain our thoughts and prayers during this exceptionally difficult time.”

Authorities went into more details saying that due to the location and condition of the gear, they suspect Obi’s disappearance may be do to an ” encounter with a marine predator,” and decided to suspend the search.

It is unclear what predator authorities believe may be involved in Obi’s disappearance.