Firefighters battle West Town blaze

Chicago fire crews are battling a massive extra-alarm fire at a commercial building in West Town.

The three-alarm blaze broke out about 6 p.m. Tuesday at Commercial Pallet, 2029 W. Hubbard St., according to the Chicago Fire Department. It was upgraded to a four-alarm fire shortly before 7 p.m.

A number of pallets at the building were ablaze, producing billowing smoke that could be seen for miles. More than 200 firefighters and multiple engines were working to put out the fire, officials said.

The Chicago Office of Emergency Management and Communications said the fire damaged a nearby train track. Metra's Union Pacific West, Milwaukee District West, Milwaukee North and North Central Service lines were stopped due to the damage, the agency said.

No injuries have been reported. The cause of the fire was under investigation.