The desperate search for two 13-year-old boys who disappeared after jumping into the Hudson River at Inwood Hill Park took a grim turn Saturday, when a Post reporter and photographer spotted clothing and other items apparently belonging to one of the teens.

The items — a pair of blue eyeglasses and gray-colored pants or shorts — were spotted near the Spuyten Duyvil Bridge between Inwood and the Bronx, near where cops say the boys jumped into the river Friday from a nearby railway bridge at around 5:45 p.m. The teens were identified by family and friends as Isaiah Moronta and Manny Flores.

Detectives were overheard telling family members — huddled together as they watched half a dozen NYPD divers scour the river — they had found a pair of glasses, which a relative recognized as belonging to one of the teens.

Still, one of the boy’s mothers’ clung to hope.

“My son is safe,” the woman said as she walked off. “They’re going to find him.”

The pair were believed to be playing by the Dyckman baseball fields when they decided to jump in the river, police said. Witnesses told authorities that one of the boys was “struggling” in the current.

The boys were pals who attended the nearby PS 278 Paula Hedbavny School on West 219th in Inwood, said a relative who declined to give his name.

“We’re just trying our best to see, to find a solution. We’re still looking for answers. We don’t even understand what went on,” he said. “This is a nightmare. Two innocent boys …”

“They don’t deserve to die like this. They were good kids,” he continued. “This is a hard situation.”