A man’s naked body found on the beach and a woman’s body discovered in a nearby SUV Monday morning in Long Beach appear to be unrelated, and police do not suspect foul play in either case, according to authorities.

The fact that both bodies were just a few hundred yards from each other appears to be a coincidence.

• UPDATE: Authorities identify one of two bodies found near coast

Police believe the man, who had an apparent bullet wound to the upper torso, shot himself some time before his body was discovered around 5:50 a.m. near the waterline in the 5400 block of East Ocean Boulevard, Long Beach Police Department spokeswoman Nancy Pratt said.

Officers responded, and as they investigated, they found the woman’s body in an SUV parked along Ocean Boulevard, not far from the sand, according to authorities.

• PHOTOS: Police investigate 2 bodies found at beach

Now, Pratt said, investigators believe the woman died of natural causes, although the Los Angeles County Coroner will determine the official cause of death in both cases.

“I can tell you that she was in extremely poor health and may have been homeless and living out of her vehicle,” Pratt said. There were no obvious signs of trauma, he said.

So far, investigators haven’t found any link between the two deaths, or any indication the man and woman even knew each other, police said.

Police said in a news release Monday evening that the man was 43, and the woman was 49. Authorities have not released their identities pending notification of their families.

The man’s body had already been moved off the sand by around 10 a.m., but police were still looking for the gun Monday afternoon.

Crews swept a swath of beach with metal detectors, and dive teams scoured the water. Police aren’t sure why the man was naked, but Pratt said it’s possible his clothes could have worked themselves off if the body was in the water at some point.

Investigators are unsure how long the bodies were on the beach and in the car before being discovered.

Residents said the beachside Belmont Shore neighborhood is mostly safe, but they said it’s not uncommon to see people on the sand late at night.

Mike McBride, general manager of the nearby business Gondola Getaway, said that around 6:30 Monday morning he had to tell a small group of homeless people to leave a tent on his dock where they’d been sleeping.

As they left, one of them said, “Hey there’s a couple of dead people out there,” according to McBride.

McBride said he didn’t think anything of the comment until he learned about the bodies and told police about the interaction.

Jason Cooper, a transient in the area, said he was on the beach at a nearby public bathroom with a couple of friends from about 10 p.m. to 4 a.m.

He was surprised to hear about the deaths and said he hadn’t heard a gunshot.

“That’s crazy,” he said.

Cooper worried he might know the deceased man and woman. He said there’s a loose group of homeless people living in the area, roving from spot to spot as police move them along.

McBride said he wouldn’t be surprised if there had been a gunshot but nobody heard it.

Large shipping boats anchored off the coast often blow their horns at night and could cover up the sound, according to McBride.

“You get the ships all letting loose all night long,” he said.