BELMONT, the Bronx — A woman and her 14-year-old son were found dead in the Bronx on Sunday afternoon, police said.

Marisol Ortiz, 51, was found in one room, police said. She'd been stabbed in the head and suffered blunt trauma to the head.

Teenage son Alanche Delorbe was found in a different room. He also suffered blunt trauma to the head, officials said. The teen would have celebrated his birthday on Monday, a family member said.

Both victims were bludgeoned with an exercise weight, police sources said.

They were found by a relative in an East 185th Street apartment building near Southern Boulevard around 3:40 p.m. The relative came to the apartment after Ortiz didn't show up to work.

Police say this may be an incident of domestic violence.

No arrests have been made.

Police have not yet released any additional information.

Submit tips to police by calling Crime Stoppers at 1-800-577-TIPS (8477), visiting http://www.nypdcrimestoppers.com, or texting 274637 (CRIMES) then entering TIP577. Spanish-speaking callers are asked to dial 1-888-57-PISTA (74782).