The U.S. Navy announced on Sunday it has suspended the active search for a sailor missing since Wednesday.

The sailor was reported missing after an MH-60S Sea Hawk helicopter assigned to the USS George H.W. Bush aircraft carrier went down in the Arabian Sea at about 3:30 a.m. ET on Wednesday. Three of the four crew members were successfully rescued. 

The search for the missing sailor ended after an extensive search by the Navy and Air Force under the U.S. Central Command, according to Fox News. 

"The efforts concluded following an extensive search by the U.S. Navy and U.S. Air Force in the U.S. Central Command area of responsibility," the U.S. Naval Forces Central Command said in a social media post. "The Sailor’s name is being withheld until at least 24 hours after next-of-kin notification is complete in accordance with Navy policy."

While the cause of the incident remains under investigation, military officials have said there is no indication the emergency landing was the result of "hostile action."