Amarillo police arrested a man Thursday after a lengthy standoff in northwest Amarillo.

Amarillo Police Sgt. Brent Barbee said officers arrested Michael Wills Dibiase, 37, of Amarillo at 11:32 a.m. after they found him hiding under cardboard boxes in a building at 3914 N.W. 12th Ave.

Dibiase was arrested on an outstanding parole revocation warrant and was transported to the Randall County jail, where he was booked on the warrant and a charge of hindering apprehension, Barbee said.

No injuries were reported during the standoff, he said.

The search, Barbee said, took several hours because the building was large and contained many obstacles.

Officers faced wind chills below zero during the 12-hour standoff.

Barbee said the standoff was one of the longest he could remember in his career.

Streets in the area of 12th Avenue and North Forest Street were closed while police gathered more information for their investigation.

SWAT officers initially entered the building at 5:10 a.m. and used chemical agents and a remote-controlled law enforcement robot in their search for the suspect.

Earlier Thursday, Amarillo Independent School District asked students and staff of Amarillo Area Center for Advanced Learning, 1100 N. Forest St., to stay away from the campus until the standoff was resolved.

"Our teachers are helping monitor the students at their home campuses until we figure out the situation is all clear," AACAL Principal Jay Barrett said.

Afternoon classes resumed after the standoff ended, he said.

Jesse Rodriquez, an employee at Cook Electrical Contracting - a business in the building blocked off by police - turned his attention toward the building after a loud boom came from the area near officers.

"I hope everyone comes out of this all right," Rodriquez said.

Barbee said the loud noises were from "explosive tools" used by police. He did not elaborate.

Workers at other area shops were concerned the standoff would keep customers away.

Ken Shelton of Westwinds Amarillo Wholesale, 839 N. Forest St., said he heard what he described as a "flash-bang" go off about 8 a.m. inside the building surrounded by police.

Events leading to the standoff started late Wednesday.

At 11:12 p.m., officers learned a man wanted on a parole violation warrant was inside the building, police said.

The building contains two or more businesses, police said. Officers approached the building to locate the suspect, and police said they found a vehicle that belongs to him in the parking lot.

Police said they tried to contact the man through a public address system.

At 1:14 a.m., police said employees from the trucking company came out and told officers they had seen a man breaking through a wall.

Police said a man from another business in the building also came out. He was not the wanted person, police said.

Police and SWAT officers and negotiators were called to the scene after police learned the suspect might have had access to weapons.

Russell Anglin can be reached at russell.anglin@amarillo.com and Mollie Bryant can be reached at mollie.bryant@amarillo.com.