Updated

Possible human remains were found during a search connected to the disappearance of a Connecticut couple who have been missing for nearly three months, state police said Friday.

State and local authorities responded Thursday to a vacant house in Weston, about 15 miles west of Bridgeport. The remains were found on the property and taken to the medical examiner's office for identification, state police said.

Authorities continued to search the property Friday.

Jeanette Navin, 55, and Jeffrey Navin, 56, of the neighboring town of Easton, haven't been seen since Aug. 4. Their pickup truck was found with a shattered window on Aug. 9 in a commuter parking lot in Westport. Jeffrey Navin is president of J&J Refuse in Westport. Jeannette Navin is a school library aide in Weston.

Their 27-year-old son, Kyle Navin, was arrested Sept. 8 on a federal gun charge, but has not been charged in connection with his parents' disappearance. Authorities said they searched his Bridgeport home and found two firearms, ammunition and evidence he was using heroin, oxycodone and other controlled substances.

He is scheduled to appear in federal court in Bridgeport on Friday for a detention hearing. He has pleaded not guilty to the charge. His lawyer has declined to comment.

According to an arrest warrant affidavit, Jeffrey Navin texted his son on Aug. 4 saying he's not going home until his knows Jeannette Navin is OK. Jeffrey Navin asked Kyle Navin if he hurt his mother.

"No absolutely not. Why would you think," Kyle Navin responded, according to the affidavit.

"I go home and get framed for murder," Jeffrey Navin then texted.

"Oh stop," Kyle Navin texted back.

A short time later, Jeffrey Navin texts his son with, "U R setting me up."

"Dad really what are you talking about?" Kyle Navin replied.

Authorities said Kyle Navin told police conflicting versions of his actions on the day his parents disappeared. And the day after his parents vanished, Kyle Navin bought germicidal bleach, hair/grease drain opener, stain remover and contractor cleanup bags, police said.