A man was shot dead and three Sebastian County sheriff's deputies were injured during an hours-long standoff with law enforcement on Monday night into Tuesday morning.

The man, a white 48-year-old whose name was not released on Tuesday, was shot by a county SWAT deputy after firing multiple shotgun rounds at law enforcement, some of which injured three other county SWAT deputies, Chief Deputy Hobe Runion with the Sebastian County Sheriff's Office said. The standoff, which drew personnel from multiple law enforcement agencies to a residence off of Sunny Hill Place between Hackett and Greenwood, began after the suspect fired his shotgun at an off-duty Hackett police officer on Monday night, according to a statement read at a press conference on Tuesday afternoon at the Sheriff's Office.

The suspect was shot to death around 1 a.m. Tuesday morning after prompting a response from county deputies and "officers from almost every agency in Sebastian County," the statement reads. He was shot after deputies suspected he was trying to leave the residence in a pickup during the standoff, Runion said.

Runion said the suspect exited the vehicle with his shotgun just before he was shot to death. The suspect exited the truck after a SWAT deputy "disabled" the vehicle, the statement reads.

“As he got out, we believed he was going to shoot more rounds at our deputies," Runion said.

Runion said sheriff's officials and Arkansas State Police investigators, who are investigating the incident, are "aware of possibly some" criminal history in the suspect's past. He said law enforcement officials are not ready to release this information.

The suspect reportedly fired at the police officer shortly after the officer decided to investigate what he believed to be shots fired at the residence around 10:17 p.m. Monday, the statement reads. Runion said it is "very possible" the shots stemmed from a domestic situation.

The incident that followed was "an ongoing active shooter situation where (the suspect) was constantly firing rounds," Sebastian County Sheriff Bill Hollenbeck said. Runion said the suspect fired "over 30 rounds" from his shotgun during the incident.

“As officers were arriving on the scene, shots were being fired," Hollenbeck said. Hackett, Barling, Lavaca, Greenwood and Bonanza police officers and State Police troopers assisted deputies in their response, Hollenbeck said.

The three injured SWAT deputies, whose names were not released on Tuesday, were hit with shotgun blasts while they were "setting a perimeter" around the residence, Runion said. He said their injuries from the blasts were non-life-threatening.

Runion said the three deputies, all veterans of the Sheriff's Office, were taken to Mercy Hospital in Fort Smith and released. He said they are all on medical leave following the standoff.

The deputy involved in the shooting death of the suspect is on paid administrative leave, Runion said.

Hollenbeck said four people, including the suspect's wife, had to be evacuated from the area during the incident. He said the evacuation involved his SWAT deputies driving an armored vehicle "past the suspect's house."

"It was a situation where we were extremely concerned where, if he went mobile, there were other neighbors that we hadn’t even had a chance to rescue out of their houses yet," Hollenbeck said.

Law enforcement officials executed a search warrant on the suspect's residence on Tuesday morning, the statement reads. The body of the suspect was taken to the Arkansas State Crime Lab for autopsy, the statement reads.

Hollenbeck said he is taking "the customary 24-48 hours" to let the suspect's family know about the incident before releasing his hame. He also said deputies were "still being interviewed" in reference to the incident on Tuesday afternoon.

"We are very, very early on in this investigation," Hollenbeck said, adding that he would get more information to the public today.

During the press conference, Hollenbeck offered his condolences to the suspect's family.

“Nobody woke up yesterday morning wanting this to happen," Hollenbeck said. "Unfortunately, the suspect controlled this thing to the point where it ended in a tragedy."