AMHERST – State and local investigators worked into the evening Tuesday, collecting evidence and information at 1 Meadow Lane, the home in which two people were found dead earlier in the day.

The attorney general’s office said in a preliminary statement that investigators are looking at the deaths as a murder-suicide involving an “adult female and her adult male son,” according to the report. A State Police crime scene van was parked in the driveway of the home at 1 Meadow Lane late Tuesday night. The road is a short loop that runs off, and back to, Boston Post Road opposite Aglipay Drive in the southern part of town. Police vehicles were parked along Meadow Lane, which was cordoned off with yellow tape between the northern intersection of Boston Post Road and the first bend in the road.

Evelio Vinasco, who lives on Boston Post Road at the corner of Meadow Lane about 50 yards from the scene, said he returned home from work around 3 p.m. Tuesday and noticed police activity.

“I saw all kinds of police cars over there,” Vinasco said. “I didn’t know what was going on,” he added, saying he learned later of the deaths.

The home is listed in directories as the residence of Elizabeth Trombly, but there was no indication if she was the woman found deceased in the house.

Amherst police officers discovered the bodies earlier in the day after they were dispatched to the home for a welfare check. Officials said the two victims resided at the house, but didn’t indicate if anyone else lived there.

Officials didn’t specify how the two died, or whether the woman or the son carried out the act. They said the Chief Medical Examiner will conduct autopsies Wednesday to determine the cause and manner of death.

Meadow Lane is about a quarter mile from the South Merrimack town line.

Officials said in the statement that the investigation “is still in the early stages and ongoing,” and that more information may be released on Wednesday.

They said state and Amherst police are investigating.