Longmont police are looking for a 30-year-old Longmont man accused in an unprovoked attack of his neighbor, who suffered serious injuries, early Wednesday morning.

Kurt Severen Olson Jones was last seen leaving the Longmont area southbound on Interstate 25 from Colo. Highway 119 at about 3:20 p.m., according to police. Jones is wanted on a warrant on suspicion of second-degree assault with a deadly weapon, second-degree assault causing serious bodily injury and aggravated robbery, Longmont Police Cmdr. Jeff Satur noted in a police bulletin released to the media on Wednesday evening. The warrant carries a $75,000 bond.

Jones holed up in his home at 2130 Meadow Court on Wednesday morning after police were called to the area on a report of a fight. A second call about a disturbance led officers to his porch, where they found a broken window on the home and a cell phone abandoned on the porch.

The victim, identified as a 48-year-old man and a neighbor of Jones, was taken to Longmont United Hospital for treatment.

“It was a pretty violent assault, a pretty serious assault,” Satur said.

The victim told police he was walking home from work when he was attacked and strangled. He told police he did not know the man who attacked him. His “vascular injuries” were so severe that police were initially calling the attack an attempted murder, although the arrest warrant does not include the charge.

After Jones holed up in his fourplex, Longmont SWAT officers were called to the scene to assist.

The Longmont SWAT team surrounded the home and officers began trying to negotiate with Jones, but Satur said he was uncooperative and wouldn’t emerge or allow officers inside his home.

“Negotiations is kind of a strong word,” Satur said, because “we did all the talking” and weren’t getting any response from the resident.

Because the victim could not initially identify Jones as his attacker, police backed off of his home to continue their investigation. Jones eventually emerged and spoke with detectives after noon, Satur said.

Police obtained the arrest warrant later on Wednesday afternoon.

Area facilities that had been placed on lockdown resumed normal operations late Wednesday morning once the SWAT call out was withdrawn.

He said he couldn’t specifically address Jones’ mental health condition or police record because of lack of probable cause in the investigation as it stood early Wednesday afternoon.

“There is some history there, and I cant’ really go into the details at this point,” he said. “If we were able to make an arrest we may be able to release that information.”

Jones is described as a white man, 5-feet, 6-inches tall with brown hair and hazel eyes. He was last seen leaving Longmont in a red Mustang GT with Colorado Disabled Veteran license plate 296-XAF.

“We will be watching the suspects home and will try and convince him to turn himself in,” Satur wrote in an email to media on Wednesday evening.

Anyone with information about Jones’ whereabouts is asked to call the Longmont Police Department at 303-651-8501 or Northern Colorado Crime Stoppers at 1-800-222-8477 (TIPS). Anonymous tips may be left online at nococrimestoppers.com and text message tips may be sent to 274637 with keyword NOCO in the body.