CNN) -- A man reportedly angry about a zoning decision affecting his business drove a large bulldozer fortified with steel plates through the small town of Granby, Colorado, Friday afternoon, demolishing parts of the town center and exchanging gunfire with authorities.
Authorities said all of the buildings that were damaged or destroyed appeared to be intentionally targeted as a result of the zoning dispute.
There have been no immediate reports of injuries.
About 90 minutes after the rampage began, the armored bulldozer became stuck in one of the crumbling buildings that the man tried to plow through. Steam hissed from its punctured radiator.
Law enforcement officers surrounded the modified vehicle, which was larger than a tank, Grand County Manager Lurline Curran told CNN in a phone interview.
All was quiet inside the cab, which had been enclosed with steel plates, Curran said.
Jim Holahan, Grand County Emergency Management director, said efforts were being made to blow a hole in the plates.
Authorities don't want to cut into the vehicle, he said, for fear that it's booby-trapped.
'That's something we don't want to find out the hard way,' he told reporters at a news conference in Granby.
There's been no contact with the driver, Holahan said.
'They don't know if he's still alive or what's going on,' said Curran.
At the height of the rampage, the bulldozer demolished or heavily damaged a concrete batch plant, the town hall, a bank, a library and the local newspaper offices. The property of the former mayor, who held office at the time of the zoning dispute, also was damaged.
'Every indication is that these were all targeted hits,' said Granby Town Manager Tom Hale. 'They were all properties that people who worked there were involved in the zoning decision.'
Gov. Bill Owens went to Granby and saw some of the damage from the air.
'It looked as if a tornado touched down and hopscotched across Granby,' he told reporters.
Curran said the bulldozer was so big that it was 'hard to stop.'
'He fortified it with some armored plates, so it was very difficult for our sheriff's department to do anything to stop him. He also had a weapon so we had to be very cautious,' she said. 'We moved in one of our scrapers from out of the landfill trying to block his way.'
She said authorities believe they know the identity of the man carrying out the attack and that it stems from a zoning dispute dating back over a year ago.
Neil Dewet, manager of the Silver Spur Saloon and Steakhouse about a half block from town hall, said he knows the man in the bulldozer, and said the man welded himself inside the cab.
'He was not coming out of there,' Dewet told CNN in a phone interview, adding that he watched as the vehicle demolished town hall, about 150 feet from where he stood.
Dewet said the man owned the bulldozer, and had modified it inside a building he owned near the concrete batch plant.
The man, who Dewet said was in his 50s, was angry at a zoning decision that allowed the concrete plant to expand around his building instead of buying his land.
Tim Neal, another Granby resident, told CNN he watched the bulldozer target specific buildings and homes -- homes of city board members who were involved in the zoning decision.
'Everybody knew he would go after everybody on the town board,' Neal said in a phone interview.
Mark Stutz of Xcel Energy said his company's building in Granby was also heavily damaged when the bulldozer crashed through the premises.
Damage to town hall and the concrete batch plant broke gas lines to those buildings, Stutz told CNN-affiliate KUSA, but Xcel employees can't get back into their building to shut off those lines.
Police and other law enforcement officers evacuated many residents and shut down roads in the town of about 1,500 residents, Curran said.
Authorities used a reverse 911 system to warn residents in the bulldozer's path to get out, Grand County Commissioner Dwayne Dailey told reporters.
Granby is about 70 miles northwest of Denver, near Rocky Mountain National Park.
is so hot right
finger old truckers for beer then sell the beer- lateralis
have seen a jogger with one, i was high when i saw him and for the first couple of seconds i thought he was really a fucking alien(on the oakley medusa hats)
WORLD FREERIDE CAMP SESSION 3 BIOTCHES