Eighteen people have been displaced by a fire that swept through a 12-unit apartment building in Wahpeton.

Eighteen people have been displaced by a fire that swept through a 12-unit apartment building in Wahpeton.

Authorities say the fire appears to have started on a first floor deck late Thursday night. KFGO reports it rapidly spread up the building's exterior walls to the third floor and attic. Six apartments were gutted. The others were damaged by smoke and water.

Richland County Emergency Manager Brett Lambrecht says half the building was on fire when firefighters arrived on scene at 11:15 p.m.

Wahpeton police went door to door as the fire spread, waking some tenants. No one was hurt.

Lambrecht says residents have been put up in local hotels or are staying with relatives. The Red Cross is assisting those in need.