TAUNTON, Mass. (WPRI) — A homicide investigation is underway in Taunton after a woman was fatally shot outside her home, allegedly by her husband.

Dianne Silveira, 71, was found by police in the driveway of 881 Bay St. around 9 p.m. Sunday, according to the Bristol County District Attorney’s Office. She was rushed to Morton Hospital where she was pronounced dead a short time later.

Her husband, Edmund Silveira, 86, reportedly fled inside the home afterward, resulting in a standoff with police that lasted for several hours.

A SWAT team was called in to help secure the neighborhood as police awaited for negotiators to arrive. Area residents were told to stay inside until the situation was resolved.

For hours, Edmund Silveira was unresponsive to all attempts to contact him, according to Taunton Police Chief Edward Walsh.

Eventually, around 1 a.m. Monday, a tactical robot was sent inside the home and located the man unarmed in the kitchen.

“We found the suspect on the ground. He was taken into custody,” Walsh said. “He’s going to the hospital for medical issues he had prior to our entry.”

The DA’s office later clarified that Edmund Silveira had several knife wounds that appeared to be self-inflicted. He was taken to Rhode Island Hospital where he remained Monday morning.

Once medically cleared, Silveira will be arraigned on a charge of assault and battery by means of a firearm, the DA’s office said, noting that the charge may be upgraded based on the outcome of the investigation.

No additional people were hurt during the incident.